World Dinosaurs Collections

Dinosaur National Monument, Colorado/Utah

2012-02-13T21:15:00.000-08:00

Dinosaur National Monument is located in northwest Colorado and northeast Utah near the northern edge of the Colorado Plateau [Map]. The Yampa River, the last free-flowing river in the Colorado River system, joins the Green River in the monument at Echo Park, named by explorer John Wesley Powell in 1869 during his first scientific expedition on the Colorado Plateau. Today visitors to the monument enjoy rafting the rivers, hiking, camping, and viewing the dinosaur fossils in the Jurassic quarry.

Established in 1915, Dinosaur National Monument encompasses over 200,000 acres and four major river canyons. Over the last 70 million years, the surface rock has been eroded to a depth of 2-3 miles, displaying a geologic stratigraphic record of the Earth's last 1.1 billion years. This is greater than even that of the Grand Canyon, making it an unparalleled site for studies in the field of geomorphology.

The monument gained its name after the discovery of an extensive Jurassic quarry in the western tip of the monument by Earl Douglass in 1909. The quarry preserves the fossilized remains of countless dinosaurs, reptiles and amphibians that were grounded in the mud 120 million years ago. During early excavations, large numbers of fossils were removed from the quarry and sent to Pittsburgh's Carnegie Museum, but most of the bones uncovered since the 1950s have been left in situ on the quarry face. This unique site allows unmatched research opportunities into vertebrate paleontology and the Jurassic paleoenvironment. Fossils from other geologic periods are also found throughout the monument.

Pinyon-juniper woodlands and semi-arid scrub, dominated by sagebrush, cover much of the monument. Domestic grazing and fire suppression have allowed sagebrush and juniper encroachment into grasslands, as well as the establishment of exotics such as cheatgrass and Russian thistle. Riparian corridors line the Yampa and Green, providing critical habitat for numerous wildlife species. Exotic tamarisk is abundant along the Green River.

Many species of mammal inhabit the park, including pronghorn antelope, mule deer, bobcat, fox, badger and beaver. The canyon walls are home to goshawk, turkey vulture, several species of hawk, and even Canada geese in the winter. Extirpated in the 1930s, bighorn sheep have been successfully reintroduced into the park. Some federally listed endangered species, including the bald eagle, peregrine falcon, Colorado squawfish, and razorback sucker, live in the monument either all year or seasonally. Gray wolf, bison and grizzly bear have long been extirpated from the monument.

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Dinosaur Fossil Collections

2012-02-13T21:08:00.000-08:00

Dinosaur Fossil Collections

Dinosaur fossils have been known about for millennia, though their true nature was not recognized; the Chinese considered them to be dragon bones, while Europeans believed them to be the remains of giants and other creatures killed by the Great Flood.

The first dinosaur species to be identified and named as Iguanodon, discovered in 1822 by the English geologist Gideon Mantell, who recognized similarities between his fossils and the bones of modern iguanas. Two years later, the Rev William Buckland, professor of geology at Oxford University, became the first person to describe a dinosaur in a scientific journal — in this case Megalosaurus bucklandii, found near Oxford.

Huge survivor dicynodont roamed Australia

2012-02-12T22:14:00.000-08:00

Dinosaurs Fossils discovered in Tasmania have scientists assured the dicynodont, regarded as far away ancestor of animals, once roamed Quotes and live through the excellent extinguished. The 250 million-year-old is still were discovered by a nature-loving Hobart several out on a move. The bull-sized being, which experts say had 10cm-long tusks and looked like a large wombat, resided through a celebration sometimes known as the Great Passing away between the Permian and Triassic times.

The catastrophe damaged 90 % of land-based life and 70 % of that in the waters. The dicynodont predated dinosaurs by 30 thousand decades and became vanished around 20 thousand decades ago. "Everyone knows about the dinosaur extinction occurrence but that was a real small function when in comparison to this extinguished," Dr Stuart Fluff, a sedimentologist from the Higher education of Tasmania, informed journalists on Monday.

"These are survivors. They live through that extinguished occurrence." The cause of the catastrophe is fiercely discussed by scientists, with the regular thinks - meteor hits, coffee and sun flames - among the prospects. "The present perspective is it might have been due to large volcanic breakouts in the Siberian menu," says Dr Tim Rozefelds from the Qld Art gallery. They say the two brain parts discovered by Bob and Dime Tyson are considerable because they will help display how lifestyle developed after the trend of extinctions.

Dr Rozefelds said the dicynodont may also have resided more periods in Quotations than on other places. "Australia is a location position and maybe some problems like the monotrenes, like the platypus and the echidna, stay through here while elsewhere on the earth they became faded," he said. The dicynodont conventional is just the second to be found in Quotations after a 1983 progression in Queensland.

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Judging a Dinosaur by its Skin

2012-02-12T22:12:00.000-08:00

We feel affection for to bring dinosaurs back to life. From museum displays and educational papers to big-budget movies, we have a fascination with putting flesh on old bones. How much anatomical guess and artistic license is necessary to do so vary from dinosaur to dinosaur.

Several dinosaurs are known from a trivial collection of remains and need a significant among of reconstruction and reinstatement on the basis of better-known specimens of connected species. Additional dinosaurs are known from complete skeletons and require less osteological internal strife, but they motionless there the challenge of filling in the soft tissue structure that the skeleton supported in life. Every now and then, paleontologists realize skin impressions related with the bones of dinosaurs. These rare dinosaur fossils can give us a enhanced idea of what the outside of a little dinosaurs looked like.

Skin impressions are established most often with hadrosaurs. These herbivores, such as Edmontosaurus and the crested Corythosaurus, are plentiful and seemed to reside in habitats where dead dinosaurs might be covered rapidly by residue, a key to the conservation of fleshy tissue structure. But these fossils can do additional help use reinstate the external appearance.

In 1912, specialized dinosaur hunter Barnum Brown named the hadrosaur Saurolophus osborni from skeletons establish in Alberta’s Horseshoe Canyon Formation. Although not mentioned at the time, three skeletons of this species were associated with skin impressions from different parts of the body, together with the jaw, hips, foot and tail. Forty years later, from skeletons originate in an enormous bonebed known as “Dragon’s Tomb” within Mongolia’s Nemegt arrangement; paleontologist Anatoly Konstantinovich Rozhdestvensky named a second species, Saurolophus angustirostris. Many skin impressions were established with skeletons of this kind, too. The information that two Saurolophus species had been originate with whole skin impressions provided Bell by means of exclusive occasion to evaluate the outer anatomy of two intimately related dinosaurs.

Both Saurolophus kind of dinosaurs had pebbly skin. Like other hadrosaurs, the skin of these dinosaurs was mainly collected of non-overlapping scales or tubercles of unreliable shape. In detail, Bell ascertained that the skin of the two species differed sufficient that one variety can be eagerly notable from the other dinosaur.

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Dinosaur National Monument, Colorado/Utah

2012-02-10T21:32:00.000-08:00

Stanford Fossil Historian Links Dinosaur Bones to Mythological Creatures

2012-02-10T21:26:00.000-08:00

Many paleontologists today believe there are connections between the mythological dragons that ancient peoples believed in and the human discovery of dinosaur fossils. Adrienne Mayor, a Stanford visiting scholar who researches both folklore and dinosaurs fossils supports that theory and has written two books which explore those connections. When The Children’s Museum of Indianapolis, the largest children’s museum in the U.S., needed an expert to help them link creatures of the imagination to real dinosaur fossils for a new exhibit, they called on Mayor for her unique expertise.

The new exhibit, "Dragons Unearthed," features a 66-million-year-old, first-of-its-kind, dragon-like dinosaur, called Dracorex. There’s no denying that Dracorex’s long muzzle and spiky horns conjure up visions of a magical beast, but the museum needed an expert to confirm that it wasn’t a coincidence that Dracorex looked more like a dragon than a dinosaur. With her extensive studies of ancient cultures’ conceptions of dinosaur fossils as evidence of dragons, Mayor’s expertise proved to be exactly what museum curators needed.

Mayor was asked to share her thoughts on Dracorex, named Dracorex hogwartsia in honor of children’s author J.K. Rowling. “The shape of the dinosaur’s skull, with its long muzzle, bizarre knobs and horns, surprised the scientists,” she said. “But the skull looks strangely familiar to anyone who has studied dragons! Dracorex has a remarkable resemblance to the dragons of ancient China and medieval Europe.”

Mayor, a scholar of Classics and History of Science, has spent years looking at the link between paleontological findings and the dragon myths that populated many ancient and medieval religions and cultures and survive even today. Mayor’s latest publication, Fossil Legends of the First Americans, correlates Native American myths with the fossils they are known or presumed to have observed.

Mayor combined her keen interest in paleontology with an abundance of long-forgotten literary, artistic and paleontological evidence to support her thesis that at least some of the fantastic mythological monsters were based on paleontological realities. According to Mayor, Sioux Indians who found a skull like that of Dracorex might have identified it as “Unktehi,” the mythical horned water monster of the South Dakota badlands, where the fossil was unearthed. She continued, “Dracorex helps us understand how fossils of mysterious, extinct animals may have inspired ancient people around the world to believe that dragons and other fabulous creatures once lived. Like modern paleontologists, fossil hunters in antiquity tried to imagine the appearance and behavior of the creatures whose bones they found.”

Adrienne Mayor is an independent scholar who investigates scientific realities embedded in myth and classical antiquity. Her research looks at ancient "folk science" precursors, alternatives, and parallels to modern scientific methods. Mayor's books The First Fossil Hunters: Paleontology in Greek and Roman Times and Fossil Legends of the First Americans opened a new field within geomythology. She is active in classical folklore, and is an independent scholar in Stanford’s Classics Department and the History and Philosophy of Science and Technology Program.

Dragons Unearthed, which opened at The Children’s Museum of Indianapolis on September 18th, 2008, highlights information that helps to explain how fossils of mysterious, extinct animals may have inspired ancient people around the world to believe that dragons and other fabulous creatures once lived. Many paleontologists today believe there might be a link between the mythological creatures ancient peoples believed to be dragons and the discovery of dinosaur fossils. Dragons Unearthed is a family-friendly, art-based exhibit centered that explores the mythology behind dragons using true dinosaur facts.

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Fossil find could solve lingering Antarctic dinosaur mystery

2012-02-08T21:07:00.000-08:00

Dinosaur Fossil remains of sauropods – dinosaurs with long necks and tails, weighing up to 100 tons – have been found on every continent but one.

Now, scientists report unearthing the first evidence of these animals in Antarctica, the last holdout.

The Argentine research team is reporting the discovery of a single vertebra and links it to a group of sauropods known as titanosaurs, hefty plant-eaters that were said to dominate the ranks of herbivores during their heyday between 90 million and 65 million years ago.

Fearsome dinosaurs

Titanosaurs appear to have been the last significant group of sauropods to emerge before dinosaurs were extinguished during a mass-extinction event some 65 million years ago.

The find, previewed at the Society of Vertebrate Paleontology's annual meeting in Las Vegas in early November, has just been formally published in the German journal Naturwissenschaften (The Science of Nature).

The team reporting the results unearthed the specimen from sediments near Santa Marta Cove on James Ross Island, a 1,000-square-mile patch of land sporting low mountains and curving bays near the tip of the Antarctic Peninsula.

Compared with the rest of the continent, capped with vast sheets of ice more than a mile thick, James Ross Island represents a fertile, if harsh, hunting ground for evidence of dinosaurs on the continent.

In 1986, a group of Argentine paleontologists reported uncovering what they termed the first confirmed dinosaur fossils on the continent, found on the island.

The likelihood that titanosaurs would have roamed what is now Antarctica was raised in 2007, the team notes, when another group of paleontologists found what it interpreted as a titanosaur vertebra in New Zealand. During the Cretaceous, the land of kiwis and "Lord of the Rings" was joined to Antarctica, providing ample opportunity for migration.

Indeed, the James Ross Island specimen appears to be the latest example of Cretaceous dinosaurs with a global reach.

The team suggests that titanosaurs, which have appeared in the fossil record in South America, among other continents, could have migrated to Antarctica when the two continents were joined by an isthmus during the late Cretaceous.

But the existence of the New Zealand fossil, as well as specimens in Australia, also suggests that the animals were widely distributed among the slowly diverging continents by then, the researchers add.

Given how sparse Antarctica's fossil record is compared with other continents, even the unearthing of a single fossil vertebra from a new group (for the continent) represents a step forward in reconstructing a more complete picture of prehistoric life at the bottom of the world, the team suggests.

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Ancient tulip-like creature had bizarre gut

2012-02-08T21:05:00.000-08:00

A weird tulip-shaped creature discovered fossilized in 500-million-year-old rocks had a feeding system like no other known animal, researchers reported today.

The animal was a filter feeder, with a tulip-shaped body and a stem that anchored it to the seafloor. Named Siphusauctum gregarium, the creature was about the length of a dinner knife at 8 inches (20 cm) and had a bulbous structure that contained its feeding system and gut.

The fossil was discovered in a rock layer called the Burgess Shale in the Canadian Rockies.

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"Most interesting is that this feeding system appears to be unique among animals," study researcher Lorna O'Brien, a doctoral candidate at the University of Toronto, said in a statement. "Recent advances have linked many bizarre Burgess Shale animals as primitive members of many animal groups that are found today, but Siphusauctum defies this trend. We do not know where it fits in relation to other organisms."

Siphusauctum lived in gardenlike clusters on the seafloor, with some fossil slabs containing the remains of more than 65 individuals. Researchers have discovered more than 1,100 individual specimens, earning the fossil area the nickname "the tulip beds."

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The oldest crocodile so far found was 30 feet long had a shield for a head

2012-02-07T21:01:00.000-08:00

Casey Holliday, a University of Missouri researcher, was looking through some of the hundreds of unlabeled items kept in a storage facility when he come about a remarkable find – a skull fragment from an ancient croccodile, dating back from the late Cretaceous, around 95 million years ago. What’s really interesting about the find is not only the fact that it was 30 feet long, or that it’s the oldest closest relative to modern day crocodiles; it’s that it had 5 feet long skull, which featured a shield like shape, granting him the nickname “Shiedcroc”.

The crocodile, which is part of a previously undescribed species called Aegisuchus witmeri, was first found in Morocco by local fossil diggers. Since the African soil is recognized as an important source of fossils, it’s become an important target zone for researchers, however due to its extensive land mass, it’s been a lot more practical to provide financial incentives for the local populace to dig for fossils. Most of the things they dig up are worthless, some wind up at mineral or rock shows/shops, and a few are deemed valuable enough to be further studied. The skull fragment was dug up years ago, but for some reason it was stacked up in storage facility in the Royal Ontario Museum in Toronto, until Holliday came by and re-discovered it.

Although it was just a fragment of the croc’s massive skull, scientists were able to semi-accurately assess it’s head proportions by performing CAT scans and geometrical analysis, and hence the rest of its buss-sized body. The skull featured bumps and grooves on its roof, which signaled the fact that it was once filled with blood vessels, which would’ve likely delivered blood to a thick, circular, shield-like mound of skin atop the creature’s skull. This is a unique feature, never before seen in any crocodile species, modern or ancient.

The researchers believe, however, that its thick shield-like skin didn’t serve as a defensive weapon, but rather as a show-off feature to impress mates or ward-off predators; a sort of peacocking. The discovery can help scientists learn more about the evolution of crocodiles as well as offer new information about how to protect modern reptilian habitats.

Holliday plans to give the skull chunk back to the Royal Ontario Museum, where it will be put on display later this year.Holliday plans to give the skull chunk back to the Royal Ontario Museum, where it will be put on display later this year, and of course continue his study of the crocodile’s evolution.

For more information related to dinosaurs, visit rareresource.com.

Oldest Animal Discovered—Earliest Ancestor of Us All?

2012-02-07T20:58:00.000-08:00

The creature, Otavia antiqua, was found in 760-million-year-old rock in Namibia and was as tiny as it may be important.

"The dinosaurs fossils are small, about the size of a grain of sand, and we have found many hundreds of them," said study leader Anthony Prave, a geologist at the University of St. Andrews in the U.K.

"In fact, when we look at thin sections of the rocks, certain samples would likely yield thousands of specimens. Thus, it is possible that the organisms were very abundant."

From these tiny "sponges" sprang very big things, the authors suggest. As possibly the first muticellular animals, Otavia could well be the forerunner of dinosaurs, humans-basically everything we think of as "animal."

Oldest Animal Built to Last?

Prior to the new discovery, the previous earliest known "metazoan"—animals with cells differentiated into tissues and organs—was another primitive sponge, dated to about 650 million years ago.

Based on where the new fossils were found, Prave and his colleagues think Otavia lived in calm waters, including lagoons and other shallow environments.

The team thinks Otavia fed on algae and bacteria, which the animal drew through pores on its tubelike body into a central space. There the food was digested and absorbed directly into Otavia's cells.

The simple setup seems to have worked.

The fossil record indicates Otavia survived at least two long-term, severe cold snaps known as "snowball Earth" events, when the planet was almost completely covered in ice.

Despite such wild environmental swings, "the oldest and youngest Otavia fossils all have the same quasi-ovid form, with large openings leading from the exterior," Prave said in an email.

In short, the animals didn't evolve much, he said—suggesting that, at least for its roughly 200 million years of existence, Otavia was built to last.

For more information related to dinosaurs, visit rareresource.com.

'Inside the World of Dinosaurs' Feeds the Dino Lover in All of Us

2012-02-06T21:27:00.000-08:00

t seems every child goes through a phase in which they're fhttp://www.blogger.com/img/blank.gifascinated by the fact that millions of years ago, enormous reptiles walked the Earth. It's a phase some of us never really outgrow. Inside the World of Dinosaurs is app that works sort of like an interactive encyclopedia of dinosaurs, and even at $15, it's worth the price.

As near as I can tell, almost every kid goes through an intense dinosaur phase, and for some adults, the fascination remains for decades. Even years after the movie "Jurassic Park" brought dinos to life, I would still eat up all the dinosaur documentary shows I could find, like "Walking With Dinosaurs." When I saw Inside the World of Dinosaurs as an app made specifically for the iPad, I was interested. When I saw that it was narrated by Stephen Fry, the UK actor, comedian and writer, I bought it.

After all, if you're going to have a narrator of something sort of sciencey it doesn't hurt to listen to a dude with a British accent.

Basically, Inside the World of Dinosaurs is a lot like an animated and interactive iBook, except it's more app-like than book-like. It has 60 animated, slightly interactive and photo-realistic dinosaurs with a total of 310 3D models of things like dinosaur tails and the fossil creation process.

Many of the dinosaurs are animated and walk in place for you, which is cool on its own, but then the dino will belch out some sort of dinosaur roar or mating call. Obviously, these noises are imaginary -- the real dinosaurs millions of years ago probably all sounded different. Still, I must admit, hearing a Quetzalcoatlus squawk seem to make the animations all the more real.

Inside the World of Dinosaurs is a lot like a thoroughly modern encyclopedia on the subject. I don't know how many dinosaurs are represented, but there's a lot. All the dinosaurs have a encyclopedia-like entry with an 3D model, and each has a page with a basic paragraph description along with key facts, like its habitat, the period in which it lived, and its length, height and weight. Then there's a second page that offers up something interesting about the dinosaur, maybe some comparisons to other dinosaurs and an animation of the dino in action.

A Giganotasaurus, for example, weighed eight tons more than the famous T-Rex. One of the photo-realistic 3D models on the page shows a pack of the carnivores next to an adolescent Argentinosaurus. In another illustration, you can drag your finger to show the Giganotasaurus running.

Want a closer look? You can use the reverse pinch move to zoom into a 3D model to make it larger, then drag your finger around to view the dinosaur from all sides (on a horizontal plane -- you can't view a dino from above, for example, which would be awesome). I expected a pinch move here to return back to the original dino page, but alas, you have to tap an "x" with a circle around it.
Story Time

While you can read the text yourself, one nice thing about letting Fry do the narration (you can toggle it on and off) is that you can listen while you touch and spin the dinosaurs and look at the plants or ecosystems. And for kids, especially, I imagine listening could bring this realistic book-like app to an audience too young to read the big words on their own.

The book doesn't exit without an homage of sorts to the famous dinosaur hunters over the years -- the book highlights 15 of them.

The Timeline feature is appreciated, too. You can, at a flickable glance, see which dinosaurs lived during which time periods in relation to other dinos of the same era. If you tap on one, you'll launch into the fact page for the creature. That's nice, but I was expecting a back button to return to the timeline. Since there is no back button, you've got to navigate back to the timeline, which isn't terrible, just unexpected.

All in all, Inside the World of Dinosaurs is a great app. Can't really go wrong. At $14.99, it seems a little spendy, but as I've noted in previous reviews, I think there's some price sensitivity cultural issues at play here. A 2D book of this quality could easily sell for twice that price, and yet on the iPad, you get something vastly more interactive and fun. So technically it's a bargain -- especially if you've got some dinosaur-obsessed youngsters running around the house.

For more information related to dinosaurs, visit rareresource.com.

Jurassic-era sounds recreated by scientists

2012-02-06T21:24:00.000-08:00

Ever wondered what is was like to live during the Jurassic era?

According to scientists, you may have a chance to hear what it was like to live among dinosaurs.

A team of scientists from the U.K. have reportedly recreated the noises of the Jurassic age, using a recently discovered fossil as a template.

Writing in the journal Proceedings of the National Academy of Sciences, British scientists explained how they used high-resolution images of the extinct creature’s wings to count the number and spacings of teeth on each file, allowing them to dissect exactly what noises the creature would have made.

The team released the findings of their work on Monday, noting that an extremely well preserved fossil of a katydid from China named Archaboilus musicus, was the creature upon which the recordings are based.

The recreated noise would have traveled throughout the forest, say scientists. The team noted that it was simple, pure and capable of traveling long distances in the night.

Scientists said the tone and pitch of the creature’s noise was not surprising. Most crickets produce something akin to pure tones. The reason has to due with the fact that it is more difficult for a predator to track a pure tone back to its origin.

“This Jurassic bush cricket… helps us learn a little more about the ambiance of a world long gone,” said co-author Fernando Montealegre-Zapata of the University of Bristol.

The insect was large compared with many modern crickets, growing to nearly five inches and sporting three inch-long wings. Each wing was furnished with the stiff plectrum and a toothed file that produce the familiar chirp of the cricket’s mating call when rubbed together, the team noted.

Scientists working on the project say it remains unclear exactly what purpose the noise served. The team noted that the creature’s noise could have been a mating call, or a communications device of some sort. Scientists also posit that the noise could have served as a detraction to predators, similar to those heard today. The crickets may have been hunted by early mammals, but bats – many of which feast on nocturnal insects – did not appear until about 100 million years later, scientists noted.

“For Archaboilus, as for living bushcricket species, singing constitutes a key component of mate attraction. Singing loud and clear advertises the presence, location and quality of the singer, a message that females choose to respond to — or not,” said the scientists. “Using a single tone, the male’s call carries further and better, and therefore is likely to serenade more females. However, it also makes the male more conspicuous to predators if they have also evolved ears to eavesdrop on these mating calls.”

In a statement released Monday, the team noted that the recording would allow scientists to study the evolution of tone communication, a means of communication used by insects. The team also noted that the recording could ultimately shed light on how small mammals and other creatures communicated millions of years ago.

“This discovery indicates that pure tone communication was already exploited by animals in the middle Jurassic, some 165 million years ago,” said Professor Daniel Robert, an expert in the biomechanics of singing and hearing in insects, in Bristol’s School of Biological Sciences.

The findings strongly suggest that katydids were well-adapted for music-making during the Middle Jurassic, 165 million years ago. That led the researchers to speculate that the katydid’s distant ancestors might have begun chirping more than 50 million years earlier, during the Triassic Period, thanks to “the formation of random teeth across several veins on the forewings, and the associated production of noisy sounds.”

For more information related to dinosaurs, visit rareresource.com.

New dinosaur species discovered in far north Alaska

2012-02-05T21:00:00.000-08:00

Paleontologists from the Museum of Nature & Science will announce their discovery of a new species of the ceratopsid dinosaur Pachyrhinosaurus at the Society of Vertebrate Paleontology 71st Annual Meeting to be held Nov. 2 – 5, 2011 in Las Vegas.

The new species will be formally named the Pachyrhinosaurus perotorum, in recognition of the Perot family (Margot and H. Ross Perot and their children), who have demonstrated a long history of supporting science and science education for the public and for their support of the Museum of Nature & Science, located in Dallas, Texas.

In conjunction with the announcement, a draft of the paper that describes the find was posted recently at the website of Acta Palaeontologica Polonica, an international quarterly journal that features papers of general interest from all areas of paleontology. Jointly submitted by Anthony R. Fiorillo, Ph.D., the Museum’s chief curator and director of research, and Ronald S. Tykoski, Ph.D., chief fossil preparator at the Museum, the paper is entitled: A new species of the centrosaurine ceratopsid Pachyrhinosaurus from the North Slope (Prince Creek Formation: Maastrichtian) of Alaska. The new dinosaur was discovered on lands managed by the Bureau of Land Management, and the research was funded by the National Science Foundation Office of Polar Programs. The final paper will be published by the end of this year.

An excerpt from the report: The Cretaceous rocks of the Prince Creek Formation contain the richest record of polar dinosaurs found anywhere in the world. Here we describe a new species of horned dinosaur, Pachyrhinosaurus perotorum that exhibits an apomorphic character in the frill, as well as a unique combination of other characters. Phylogenetic analysis of 16 taxa of ceratopsians failed to resolve relationships between P. perotorum and other Pachyrhinosaurus species (P.canadensis and P. lakustai). P. perotorum shares characters with each of the previously known species that are not present in the other, including very large nasal and supraorbital bosses that are nearly in contact and separated only by a narrow groove as in P. canadensis, and a rostral comb formed by the nasals and premaxillae as in P. lakustai. P. perotorum is the youngest centrosaurine known (70-69 Ma), and the locality that produced the taxon, the Kikak-Tegoseak Quarry, is close to the highest latitude for recovery of ceratopsid remains.

“Discovering hundreds of bones from all these pachyrhinosaurs in one spot was unbelievably exciting, and we really thought the expedition was an incredible success. To later realize that we had unearthed a whole new species was one of the best days of my career,” said Dr. Fiorillo.

Dr. Fiorillo discovered the Pachyrhinosaurus perotorum during a return excavation in 2006 in far north Alaska, many miles north of the Arctic Circle. Incidentally, because of Dr. Fiorillo’s stature as an internationally renowned authority on polar dinosaurs, a film crew from PBS’ NOVA series was documenting his team’s work at the site.

The film crew fortuitously captured the unearthing of the skull and hundreds of surrounding fossils that came from at least ten Pachyrhinosaurus individuals. Those exciting moments were featured in an hour-long NOVA program entitled Arctic Dinosaurs, which debuted in 2008 on PBS (view the segment at http://video.pbs.org/video/1022686073/).

The NOVA segment followed the perils of working in Alaska – from operating a base camp in frigid temperatures, to the daily crossing of the precariously frigid river and the climbing of a steep bluff to get the site, to other researchers’ use of dynamite to access the hidden layers of the Earth. According to PBS, the segment also explored “how dinosaurs – long believed to be cold-blooded animals -- endured the bleak polar environment and navigate in near-total darkness during the long winter months.”

Once the dig was completed, Fiorillo and his team meticulously packaged the precious cargo in plaster-burlap jackets (although getting plaster to harden in sub-zero temperatures proved challenging), then painstakingly airlifted them by helicopter – encased only in heavy-duty netting attached to a clevis. They were then taken to a nearby airstrip, where they were flown to Fairbanks. Placed in wooden crates and marked “Dallas or bust,” the carefully padded treasures traveled to Dallas by truck.

Upon their arrival in the paleontology lab at the Museum of Nature & Science, the jackets were handed over to Dr. Tykoski, who spent the next several years meticulously whittling away the 70 million-year-old sediment that entombed the dinosaur bones.

“It’s as if someone took 15 Pachyrhinosaurs, dumped them into a blender for 30 seconds, poured all the mess out into a ball of concrete, then let it solidify for 70 million years,” said Dr. Tykoski describing his experience.

In early 2011, Dr. Tykoski and Dr. Fiorillo were stunned and excited when newly cleaned and reassembled pieces clearly showed they had found a new species of the Pachyrhinosaurus.

Dr. Fiorillo gives credit to field crewmembers that collected data for this project, including David Norton, Paul McCarthy, Peter Flaig, Kent Newman, Thomas Adams, Christopher Strganac, and Jason Petula.

A reconstruction of the Pachyrhinosaurus perotorum will be installed in the Life: Then and Now Hall, a 14,000-square-foot hall that will be part of the new Perot Museum of Nature & Science, which is currently under construction and slated to open in Dallas’ Victory Park in early 2013. The Life: Then and Now hall will showcase the Museum’s paleontological research, mounted animals, and highly regarded ornithological book collection, The Mudge Collection.

Illustrating their strong support of science, in May 2008 the Perot children made a $50 million gift to the museum campaign in honor of their parents, Margot and Ross Perot. The Victory Park facility has been named in their honor. The Perot children are Katherine Reeves, Carolyn Rathjen, Suzanne McGee, Nancy Perot Mulford and Ross Perot, Jr.

“Science has been a cornerstone in the lives and careers of the Perot family. They have also been longtime supporters of science education, especially in the area of making science exciting and relevant to young people. We’re truly thrilled to name this discovery in their honor,” said Dr. Fiorillo. “And we can’t wait for the world and everyone who loves dinosaurs to this see this life-sized reconstruction of the Pachyrhinosaurus perotorum when it debuts at the new Perot Museum.”

For more information related to dinosaurs, visit rareresource.com.

Origin of Dinosaur killing asteroid remains a mystery

2012-02-05T20:59:00.000-08:00

Observations from NASA's Wide-field Infrared Survey Explorer (WISE) mission indicate the family of asteroids some believed was responsible for the demise of the dinosaurs is not likely the culprit, keeping open the case on one of Earth's greatest mysteries.

While scientists are confident a large asteroid crashed into Earth approximately 65 million years ago, leading to the extinction of dinosaurs and some other life forms on our planet, they do not know exactly where the asteroid came from or how it made its way to Earth. A 2007 study using visible-light data from ground-based telescopes first suggested the remnant of a huge asteroid, known as Baptistina, as a possible suspect.

According to that theory, Baptistina crashed into another asteroid in the main belt between Mars and Jupiter about 160 million years ago. The collision sent shattered pieces as big as mountains flying. One of those pieces was believed to have impacted Earth, causing the dinosaurs' extinction.

Since this scenario was first proposed, evidence developed that the so-called Baptistina family of asteroids was not the responsible party. With the new infrared observations from WISE, astronomers say Baptistina may finally be ruled out.

"As a result of the WISE science team's investigation, the demise of the dinosaurs remains in the cold case files," said Lindley Johnson, program executive for the Near Earth Object (NEO) Observation Program at NASA Headquarters in Washington. "The original calculations with visible light estimated the size and reflectivity of the Baptistina family members, leading to estimates of their age, but we now know those estimates were off. With infrared light, WISE was able to get a more accurate estimate, which throws the timing of the Baptistina theory into question."

WISE surveyed the entire celestial sky twice in infrared light from January 2010 to February 2011. The asteroid-hunting portion of the mission, called NEOWISE, used the data to catalogue more than 157,000 asteroids in the main belt and discovered more than 33,000 new ones.

Visible light reflects off an asteroid. Without knowing how reflective the surface of the asteroid is, it's hard to accurately establish size. Infrared observations allow a more accurate size estimate. They detect infrared light coming from the asteroid itself, which is related to the body's temperature and size. Once the size is known, the object's reflectivity can be re-calculated by combining infrared with visible-light data.

The NEOWISE team measured the reflectivity and the size of about 120,000 asteroids in the main belt, including 1,056 members of the Baptistina family. The scientists calculated the original parent Baptistina asteroid actually broke up closer to 80 million years ago, half as long as originally proposed.

This calculation was possible because the size and reflectivity of the asteroid family members indicate how much time would have been required to reach their current locations -- larger asteroids would not disperse in their orbits as fast as smaller ones. The results revealed a chunk of the original Baptistina asteroid needed to hit Earth in less time than previously believed, in just about 15 million years, to cause the extinction of the dinosaurs.

"This doesn't give the remnants from the collision very much time to move into a resonance spot, and get flung down to Earth 65 million years ago," said Amy Mainzer, a co-author of a new study appearing in the Astrophysical Journal and the principal investigator of NEOWISE at NASA's Jet Propulsion Laboratory (JPL) in Pasadena. Calif. "This process is thought to normally take many tens of millions of years." Resonances are areas in the main belt where gravity nudges from Jupiter and Saturn can act like a pinball machine to fling asteroids out of the main belt and into the region near Earth.

The asteroid family that produced the dinosaur-killing asteroid remains at large. Evidence that a 10-kilometer (about 6.2-mile) asteroid impacted Earth 65 million years ago includes a huge, crater-shaped structure in the Gulf of Mexico and rare minerals in the fossil record, which are common in meteorites but seldom found in Earth's crust. In addition to the Baptistina results, the NEOWISE study shows various main belt asteroid families have similar reflective properties. The team hopes to use NEOWISE data to disentangle families that overlap and trace their histories.

"We are working on creating an asteroid family tree of sorts," said Joseph Masiero, the lead author of the study. "We are starting to refine our picture of how the asteroids in the main belt smashed together and mixed up."

For more information related to dinosaurs, visit rareresource.com.

Archaeopteryx - missing link between birds and dinosaurs comes to National Museum Cardiff and dinosaurs comes to Nationwide Art gallery Cardiff

2012-02-03T21:28:00.000-08:00

The controversy rumbles on as to whether the Archaeopteryx was a chicken, a old or the move between the two, but palaeontologists sometimes discover a chance to acknowledge that it is the nearest known ancestor to our contemporary feathered associates.

Now guests to Nationwide Art gallery Cardiff can get a deeper look at a traditional of this fascinating and unusual primitive being, which times from the overdue Jurassic interval (approx 150 thousand decades ago), as one of only ten types goes on present.

About the dimension a magpie, Archaeopteryx was first described 150 decades ago by the In in german palaeontologist Hermann von She (1801-1869) although this sample, discovered in 1990 in Malaysia and known as The Phantom, may come to be one of the most essential.

Discovered in youthful stones than the other ten noted Archaeopteryx, professionals believe it could be a more innovative sample and involves an almost finish mind, back, the wishbone, and a eventually left forelimb with just one kids finger pull.

Casts and pictures of all other nine Archaeopteryx past, such as the so-called ‘London’ and ‘Berlin’ types can also be seen with the present together with stored past from the same geological creation with a dragonfly and little pterosaur (flying reptile).

Unlike contemporary wildlife Archaeopteryx had a complete set of the pearly whites, a lengthy bony trail and three nails on each of its wings, which may have been used for learning offices. It is likely that Archaeopteryx could fly, although viewpoint on this is, again, separated.

“We’re definitely energized and very energized that we havhttp://www.blogger.com/img/blank.gife the Archaeopteryx sample in Cardiff and in the UK for initially ever,” said Dr Rich Bevins, Owner of Geology, Amgueddfa Cymru – Nationwide Art gallery Wales.

“This is an excellent chance of guests to come and discover out more in our new present on this unusual and debatable traditional.”

Resource from :http://archaeologynewsnetwork.blogspot.in/2011/10/archaeopteryx-missing-link-between.html

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Dinosaur-hunting group scours Montana’s Badlands for paleontology's most-wanted

2012-02-03T21:24:00.000-08:00

The shrub-flecked Badlands along Montana’s lower edge reek with oil toxic gases. Existing among herds of beef, the oil derricks loom like iron-headed dinosaurs from another age.

That’s exactly why Mark Parris, the curator of the New Jacket Condition Art gallery, and Jerr Schein, associate curator, are here. Not for oil — for dinosaurs. Particularly, the european relatives of New Jersey’s dinosaurs, like the Dryptosaurus, a trim family member of the predator Tyrannosaurus rex; and Hadrosaurus, a version to the duck-billed, plant-eating Edmontosaurus.

“The New Jacket Condition Museum’s selections of dinosaurs are not huge nor amazing,” says Parris, Yet they concentrate on New Jacket, which is significant to the comprehension of the lower subcontinent of the Cretaceous, as well as the record of old paleontology.”

Resource from : Read Full Article

Virtually every summer time, Parris comes back to the Badlands for items of the last he can add to the museum’s “Fossil Mysteries” display.

Before dinosaurs became vanished in the evening of the Cretaceous Interval 65 large numbers decades ago, Northern The u. s. declares was divided by a huge, short exotic beach known as the Western Internal Seaway. Extending from North america to South usa, this subtropical beach protected what now is the center of the United States, from Mt to Co to Might and down to Arizona.

East of the Seaway was the subcontinent of Appalachia; to the western its sibling subcontinent, Laramidia. Evaluating the dinosaurs from each area of the Seaway, says Parris, “can provide us with an overall viewpoint of the progression of the Northern National wildlife progress and annihilation.”

On this yearly summer time adventure, Parris and Schein and several volunteers go out on a dirty street from the little city of Red Make to the Puncture Creation, a wealthy funeral floor acknowledged for long-extinct plants.

For more information related to dinosaurs, visit rareresource.com.

The Dinosaurs' existing descendants

2012-02-01T20:49:00.000-08:00

In a wood woodlands in non-urban east The far east, a durable shale mountain is loaded with the continues to be of vanished wildlife from 125 thousand years ago, when this part of Liaoning location was protected with water ponds. Volcanic breakouts consistently convulsed the area at time, entombing lots of an incredible number of creatures, types of fish, snails and bugs in ash. I step gingerly among the variety previous, choose up a shale piece not much bigger than my hand and slap its side with a mountain sort. A joint breaks a russet-colored types of fish in half, generating reflection opinions of gentle bout and cuboid as slim as people hair.

One of China's celebrity paleontologists, Zhou Zhonghe, joy. "Amazing place, isn't it?" he says.

It was in 1995 that Zhou and fellow workers declared the development of a traditional from this primitive catastrophe location that heralded a new age of paleontology. The traditional was a basic chicken the dimension a crow that may have been asphyxiated by volcanic toxic gases as it rolling above the ponds all those an incredible number of years ago. They known as the new types Confuciusornis, after the The far east thinker.

Until then, only a few primitive chicken previous had been uncovered anywhere in the world. That's to some extent because wildlife, then as now, were far less typical than types of fish and invertebrates, and to some extent because wildlife more easily avoided mudslides, tar leaves, volcanic breakouts and other geological phenomena that taken creatures and stored records of them for the years. Professionals have placed only ten complete fossilized pumpkin heads or scarecrows of the first known chicken, Archaeopteryx, which resided at the end of the Jurassic period, about 145 thousand years ago.

Zhou, who works at the Institution of Vertebrate Paleontology and Paleoanthropology (IVPP) of the The far east Academia of Sciences in China, considered that the incredible cuboid furniture in Liaoning might complete some of the many card blanks in the traditional reputation the first wildlife. He couldn't have been more prophetic. In the last 15 years, a large number of wonderfully stored traditional wildlife have surfaced from the historical lakebed, known as the Yixian Creation. The location has also produced gorgeous old types, companies which had never been seen before. As a result, The far east has been the key to dealing with one of the biggest concerns in old technology in the last 150 years: the real connection between wildlife and dinosaurs.

The idea that birds—the most different number of area vertebrates, with nearly 10,000 existing species—descended immediately from dinosaurs isn't new. It was brought up by the Language biologist He Mom Huxley in his 1870 treatise, Further Proof of the Appreciation between the Dinosaurian Reptiles and Birds. Huxley, a well known anatomist perhaps best recalled for his fervent protection of Charles Darwin's concept of progress, saw little change between the cuboid framework of Compsognathus, a old no bigger than a chicken, and Archaeopteryx, which was found in Malaysia and described in 1861. When Huxley checked out ostriches and other contemporary wildlife, he saw smallish dinosaurs. If a baby chicken's leg cuboid were increased and fossilized, he mentioned, "there would be nothing in their people to avoid us from mentioning them to the Dinosauria."

Still, over the years scientists who questioned the dinosaur-bird website also created good biological justifications. They said dinosaurs absence a number of functions that are definitely bird, such as wishbones, or merged clavicles; cuboid full of air pockets; versatile arm joints; and three-toed toes. Moreover, the posited website seemed in contrast to what everyone thought they knew: that wildlife are small, brilliant, swift, warmblooded sprites, whereas dinosaurs—from the Ancient greek for "fearfully great lizard"—were coldblooded, unexciting, plodding, reptile-like wildlife.

In the overdue Sixties, a fossilized old bones from Mt started to challenge that premise. Deinonychus, or "terrible claw" after the sickle-shaped talon on each back feet, was about 11 toes from head to trail and was a lithe predator. Moreover, its cuboid framework was just like that of Archaeopteryx. Soon scientists were collecting other fascinating physical evidence, discovering that merged clavicles were typical in dinosaurs after all. Deinonychus and Velociraptor cuboid had air openings and versatile arm joint parts. Dinosaur attributes were looking more birdlike all time. "All those things were yanked out of the description of being a chicken," says paleontologist Matthew Carrano of the Smithsonian Nationwide Art gallery of Natural Record.

But there was one important function that had not been found in dinosaurs, and few experts would feel entirely relaxed saying that chickadees and triceratops were kin until they had evidence for this losing biological link: down.

A inadequate The far east gardener, Li Yingfang, created one of the biggest traditional discovers of all-time, in May 1996 in Sihetun town, an hour's generate from the website where I'd prospected for traditional types of fish. "I was burrowing gaps for growing plants," product recalls Li, who now has a full-time job at a old museum designed at that very website. From an opening he uncovered a two-foot-long shale piece. An knowledgeable traditional seeker, Li divided the piece and beheld a being as opposed to any he had seen. The bones had a birdlike brain, a long-tail and opinions of what showed up to be feather-like components.

Because of the down, Ji Qiang, then the manager of the Nationwide Geological Art gallery, which purchased one of Li's pieces, considered it was a new types of basic chicken. But other The far east paleontologists were assured it was a old.

Some of its previous are so well stored that scientists can see records of cellular components that included pigmentation. The discovering led to vibrant opinions of the cat-size creature, down to its candy striped trail.

For more information related to dinosaurs, visit rareresource.com.

Small foot prints discovered amongst historical old nests

2012-02-01T20:47:00.000-08:00

Tiny foot prints and traditional embryos at the most historical old nesting website ever discovered have unveiled new information about how these historical wildlife reared their youthful, according to analysis released on Wednesday.

The nesting fit in with mid-sized dinosaurs from the Beginning Jurassic Period known as Massospondylus, which matured to four to six measures (13 to 20 feet) lengthy as grownups. Their egg, however, are only six cm across.

The records eventually forgotten present that hatchlings kept in the nesting until they bending in dimension, and that the youthful Massospondylus strolled on four toes while youthful, but then likely was straight on two toes as grownups.

The analysis led by Canada and Southern region Africa scientists is based on conclusions at an excavation in Fantastic Checkpoint Highlands Nationwide Playground in Southern region African-american, and is released in the Process of the Nationwide Academia of Sciences.

The past time frame to 190 thousand years ago, introducing the most historical known proof of such conduct among dinosaurs.

The first fossilized old embryo was in Fantastic Checkpoint in 1976, and the first information about unhatched dinosaurs discovered within fossilized egg at the website were released to worldwide excitement in 2005.

At least 10 nests have now been discovered at various amounts, each positioning as many as 34 egg in close-knit grip.

"The egg, embryos, and nests come from the stones of a nearly directory street cut only 25 measures (yards) lengthy," said paleontologist John Reisz, a lecturer of the field of biology at Higher education of Greater Mississauga.

"Even so, we discovered 10 nests, indicating that there are a lot more in the ledge, still protected by plenty of mountain. We estimate that many more nests will be evaporated out in time as natural enduring procedures proceed."

Researchers believe the structure of the nests recommend that the website was came back to regularly by the old moms, who installed egg together as a team and properly structured their egg in their nests.

"Even though the traditional record of dinosaurs is comprehensive, we actually have very little traditional information about their extra the field of biology, particularly for early dinosaurs," said Mark Evans, affiliate curator, Vertebrate Palaeontology at the Noble New york Art gallery.

"This awesome sequence of 190 thousand year old nests gives us the first specific look at old imitation at the start of their major record, and records the antiquity of nesting techniques that are only known much later in the old record."

For more information related to dinosaurs, visit rareresource.com.

Archaeopteryx renewed as 'first bird'

2012-01-31T20:32:00.000-08:00

A new major shrub has once again identified archaeopteryx as the most basic of wildlife. The new analysis showing these days in The field of biology Characters is by major biologist, Dr Erina Lee of the Higher education of Adelaide and the Southern region Australia Art gallery and Dr Trevor Ought to have the Higher education of New Southern region Wales.

The magpie-sized archaeopteryx, which resided 150 thousand decades ago in Bavaria, had down and travelled like a chicken, but had a long-tail and serrated the pearly whites like a diamond.

"It was instantly acknowledged as 50 % bird-half diamond when it was first found," says Lee.

Archaeopteryx has usually been seen as the most bird-like of dinosaurs, and the most basic ancestor of wildlife.

But captured archaeopteryx was broken off its perch by the development of a old that showed up to be a very shut family member from The far east - the ground-dwelling Xiaotingia zhengi.

This little nimble meat-eating old had down and useless cuboid, and ran around on two toes.

The development of X. zhengi led to a new major shrub that placed archaeopteryx in a team with bird-like dinosaurs like velociraptor of Jurassic Playground popularity, rather than in a individual division that developed into wildlife.

"Archaeopteryx missing its exalted position in chicken progress," says Lee.

But, this new major shrub provided a issue because it placed archaeopteryx in a variety of dinosaurs that either didn't fly at all or glided in a way that was not bird-like.

Lee says, it recommended that chicken journey most probably developed more than once and archaeopteryx perhaps developed journey separately of wildlife in a situation of what's known as "convergent evolution".

As far as major concept goes, such circumstances are not particularly stylish. So Lee done a new analysis of the information to see what he found.

New analysis

He found that approximately the same variety of attributes put archaeopteryx with dinosaurs as put it with wildlife.

"If you just depend the variety of attributes it's usually a 50:50 contact," says Lee.

Lee says the conventional strategy of developing major plants weighs each quality similarly and tries to discover a shrub to suit a lot of them.

But, he says this is not actually the best strategy because some attributes are more trusted than others, because they change gradually and are more likely to be maintained through time.

For example, a again cuboid is likely to change just once, but a particular fur color could change many periods, and is thus a less trusted quality for developing major plants.

Lee obtained a strategy known as 'maximum-likelihood', which is used to develop major plants according to inherited information and used it to conventional information.

The strategy can figure out the amount of progress of different attributes and gives excess bodyweight to more trusted slow-evolving attributes.

Lee found the chicken attributes in archaeopteryx were more trusted than the old attributes and when this is taken into account you get an major shrub that regenerates archaeopteryx to its unique location as 'first bird'.

"It places it again where individuals have always considered it belonged," he says.

Lee says despite the conclusions, the actual location of archaeopteryx in the major shrub is challenging to pin down because there's a whole travel of past that lie between dinosaurs and wildlife.

For more information related to dinosaurs, visit rareresource.com.

A shrunken giant: Region dino Magyarosaurus was a small, after all

2012-01-31T20:27:00.000-08:00

In 1895, the sis of an unusual palaeontologist known as Franz Baron Nopcsa found small old cuboid on their family property in Transylvania. Nopcsa considered these as the continues to be of stunted creatures that had once resided on an area. Among these discovers were a number of cuboid that fit in with a sauropod old which Nopcsa known as Magyarosaurus dacus, after his ancient nation.

A group of experts led by Koen Stein and Lecturer Dr. Martin Sander from the Higher education of Bonn, determined to cut up the traditional cuboid of the stunted old and analysis their microstructure.

"It's unbelievable that the microanatomy of these cuboid has been stored for us to analysis after 70 thousand years," says Stein, who done the analysis as aspect of his PhD research. "Bone is a living cells, and throughout an dog's life it is regularly dissipating and developing up again." People, for example, have absolutely resorbed and refurbished their bones by time they are absolutely produced. This also took place in sauropod dinosaurs. "We were able to tell apart these fixing functions in Magyarosaurus, which confirm that the little old was absolutely produced," Stein describes.

A small among giants

Over the years, palaeontologists have regularly discussed the concern of whether or not the Magyarosaurus was a small. Martin Sander, representative of the Research Team on Sauropod The field of biology financed by Germany's middle analysis financing groundwork the DFG (Deutsche Forschungsgemeinschaft) paperwork, "An creature the dimension a equine may not seem like a small to most people but, in sauropod conditions, it's tiny!"

When Magyarosaurus was found in Transylvania (then aspect of the Austro-Hungarian Empire), the palaeontologist Nopcsa innovative the idea that Magyarosaurus was an area small, but he could not confirm it back then, at the starting of the Last millennium. Many developments have since indicated that his concept might be appropriate, especially the past of small monsters and hippopotamuses found on Mediterranean and beyond sea destinations like Sicily, The island of malta and The island of malta.

However, experts first chased a different concept. For in the pursuing years, other scientists found big sauropod cuboid on the Transylvanian site. They therefore determined that Magyarosaurus was simply a child, while the bigger cuboid came from absolutely produced grownups.

The analysis now being released provides definite proof that Nopcsa's impression had been right all along. "Our research have shown that dinosaurs on destinations were topic to the same environmental and major procedures that appearance contemporary animals," describes Martin Sander. "We were also able to show that the bigger cuboid found in that area fit in with a different old types." Whether they come from run creatures who swam to the area from the landmass, or from large forefathers of the small Magyarosaurus, continues to be a key surrounded in the mists of pre-historic time.

The crew's conclusions are now to appear in the technology paper Process of the Nationwide Academia of Sciences.

For more information related to dinosaurs, visit rareresource.com.

Paleontologists give Madagascar’s fiercest old a hand

2012-01-30T21:26:00.000-08:00

66 thousand decades ago, the fearsome, meat-eating old Majungasaurus crenatissimus prowled the semi-arid lowlands of Madagascar. Its highly effective lips bristled with bladelike the pearly whites, and its powerful feet finished in powerful nails. Not even its own kin were secure, for given the opportunity, Majungasaurus was known to practice cannibalism. Now, a new research released in the Paper of Vertebrate Paleontology displays that there was one aspect of its terrible type that was not to be feared: its palms.

First found in 1895, Majungasaurus became well known through thousands of past retrieved by the combined Mahajanga Container Venture of Stony Stream Higher education and the Université d’Antananarivo between 1993 and 2007. Nearly every framework – from its cranial head to an damage on its trail – has been described in excellent details. But the framework of Majungasurus’ forelimb has continued to be a secret until now.

Lead writer Sara Burch, of Stony Stream Higher education, says the arm of Majungasaurus epitomizes the exclusive forelimb framework of abelisaurids, a number of theropod dinosaurs known almost only from lower landmasses jointly known as Gondwana. “The size of this arm or leg are as opposed to anything we see in other theropods. The side cuboid are shorter, only a one fourth of the time the humerus (upper arm bone), but incredibly effective. The arm cuboid are not even ossified, and the stubby palms and fingers probably didn't have nails. The size are so peculiar, it comes to an end up looking like a side trapped on the end of a humerus.”

Limb decrease is nothing new for theropods; it’s highlighted in the caricature of the awesome Tyrannosaurus rex. Horrific, to be sure, but with palms too small to the begining its own deal with. “Another number of theropods, the alvarezsaurs, go their own odd way with arm or leg decrease,” says co-author Matthew Carrano of the Smithsonian Organization. “These dinosaurs also had very shorter palms and very shorter arms.”

And modern-day theropods (those feathered guys you see traveling by air around) have even missing some numbers through progress. Might one of these circumstances describe the framework of Majungasaurus? Not likely, says Burch. “While many theropods have decreased divisions, most maintain their regular size. We do not know of any other situation where the side cuboid have become more effective in this way. Abelisaurids like Majungasaurus were clearly on a absolutely different velocity from the family tree creating wildlife.”

With no contemporary analogs, it’s challenging to take a position on how this stubby forelimb was used. But, says Burch, “grasping is out of the concern – there is no way this creature was doing much treatment with such a decreased side. The combined framework indicates excellent flexibility at the knee and arm, but the person numbers probably could not have shifted separately.” The arm or leg may have been used in present, or it may stand for an mysterious major direction that was cut shorter by the Cretaceous-Tertiary extinguished.

Paleontologist Jonah Choiniere of the National Art gallery of Normal Record, who was not engaged with the research, says that the arm of Majungasaurus provides essential details about theropod progress. “Until now, most details of the forelimb in abelisaurids has come from two Southern region National types, Carnotaurus sastrei and Aucasaurus garridoi. Thanks to this research, we now know that this morphology was more wide-spread throughout Gondwana during the Overdue Cretaceous. Additionally more, we now have a powerful platform for comprehension forelimb framework in abelisaurids. The next techniques are to associate the framework to other, more basal theropods and create effective major practices for how this unusual forelimb developed.”

For more information related to dinosaurs, visit rareresource.com.

X-rays expose styles in the plumage of the first birds

2012-01-30T21:23:00.001-08:00

Scientists report today that they have taken a big step in determining what the first birds looked like more than 100 million years ago, when their relatives, the dinosaurs, still ruled the Earth. At the Department of Energy's SLAC National Accelerator Laboratory, they discovered chemical traces of a pigment, an important component of color, that once formed patterns in the feathers of the fossilized birds.

The pigment, eumelanin, is one of the coloring agents responsible for brown eyes and dark hair in many modern species, including humans. It would have been one of the factors that determined the birds' color patterns, along with structural properties of the birds' feathers and other pigments they ingested as part of their diets.

The discovery, reported June 30 in Science Express, will help give textbook illustrators, diorama makers and Hollywood special-effects artists a more realistic palette for their depictions of ancient animals. Understanding these pigment patterns is important for science, too, since they play a role in a wide range of behaviors that are important in evolution such as camouflage, communication and selecting mates.

"This is a pigment that evolved a very, very long time ago but is still actively synthesized by organisms on the planet, and we found a way to map it and show its presence over 120 million years of geological time passing," said geochemist Roy Wogelius of the University of Manchester, one of the leaders of an international team that reported the discovery. "It is a direct relationship between you, me, and some extremely old organisms."

Said report co-author Uwe Bergmann of SLAC, "If we could eventually give colors to long extinct species, that in itself would be fantastic. Synchrotron radiation has revolutionized science in many fields, most notably in molecular biology. It is very exciting to see that it is now starting to have an impact in paleontology, in a way that may have important implications in many other disciplines."

Working at SLAC's Stanford Synchrotron Radiation Lightsource, the researchers examined two fossilized birds. Confuciusornis sanctus, which lived 120 million years ago, was one of many evolutionary links between dinosaurs and birds, sporting the first known bird-like beak. Gansus yumenensis, considered the oldest modern bird, lived more than 100 million years ago and looked a bit like a modern grebe.

Scientists had previously found melanosomes—the biological "paint pots" where melanin pigments are made and stored—in both ancient and living organisms. They used information about the structures of the melanosomes to make an educated guess about the colors of the pigments inside. But the newly published research shows that this prior approach has limitations. The team looked instead for chemical traces of the pigments themselves with two sophisticated X-ray techniques developed at SSRL.

The first technique identifies specific chemicals or elements in a sample, and it can examine whole fossils rather than the tiny fragments used in previous methods, revealing pigment patterns across the whole specimen. With it, the researchers unveiled traces of specific elements in and around the tissues, bones and surrounding rock of Confuciusornis sanctus. These traces provide an image of the pigmentation patterns from this long-dead bird in eerie detail.

The most striking of these trace elements was copper. As Bergmann points out, copper, which can be toxic in high levels, has persisted in the fossil in significant amounts, appearing in the images as a ghostly glow in places where feathers remained. What was it doing there? Before they could answer that, the researchers had to determine what chemical form the copper took.

SSRL staff scientist Sam Webb used the second X-ray imaging technique to study the fossil of a single feather from Gansus yumenensis. His analysis revealed that the copper in the fossil took the same form as copper trapped by eumelanin pigment. What's more, Webb said, "When we looked outside the feather we didn't see the copper at all."

Couple that chemistry with the way the copper was distributed, and the research team was faced with a mind-boggling conclusion: They had seen actual color patterns in the fossil bird feathers. "There is a stunningly remarkable preservation of pigments," Wogelius said. The team found the same relationship between copper and pigments in samples from modern feathers and squid.

"These new techniques for teasing out evidence of pigmentation will take a lot of the guesswork out of reconstructing the appearance of extinct dinosaurs and birds," said renowned dinosaur illustrator James Gurney, author of the best-selling Dinotopia series.

Resource from : http://archaeologynewsnetwork.blogspot.in/2011/06/x-rays-reveal-patterns-in-plumage-of.html

For more information related to dinosaurs, visit rareresource.com.

Dinosaur Feathers Discovered in Canadian Amber

2012-01-29T21:12:00.000-08:00

Today a number of paleontologists declared the outcomes of an comprehensive research of several well-preserved dinosaur feathers covered in designer. Their work, which involved examples from many periods in the progress of feathers, bolstered the conclusions of other experts with recommended that dinosaurs (winged and otherwise) had various colored and translucent feathers of the type you might see on wildlife these days. The experts also provided proof, using the feathers' skin discoloration and components, that present-day chicken feathers could have developed from dinosaur feathers.

We've got a collection of these fascinating feathers stored in designer.

o much for our goals of dino control.

What you'll observe in the collection below is that the experts are concentrating on two primary items of evidence: the likeness in colour to present-day chicken feathers, and the likeness in morphology or appearance. Some of these feathers highly appear to be those of going drinking normal water wildlife these days (and the experts involve one example of a contemporary going chicken feather so you can evaluate them). Other components, however, look nothing like feathers of these days.

For more information related to dinosaurs, visit rareresource.com.

First Specific Look In the Youth of a Missing Species

2012-01-29T21:09:00.000-08:00

How did mammoths develop up? It's a easy concern, but one that has been challenging to response. Much of what paleontologists know about the excellent Ice Age monsters come from the pearly whites, cuboid, and evaluations to existing monsters, but our understanding of their beginning daily life has been limited by a not enough well-preserved large leg muscles. Now that has modified.

As provided the other day at the 71st yearly Community of Vertebrate Paleontology getting together with in Las Nevada, The state of nevada, paleontologists have now been able to look in the couple of little mammoths and look for for signs about how mammoths got their begin in daily life. We've got detailed assessments — plus some high-res 3-D animated graphics displaying everything of the mammoths' structure.

One of the little mammoths – Lyuba – has already been the celebrity of her own Nationwide Regional unique and is still on trip among galleries in the U. s. Declares. But the second leg – known as Khroma – is just creating her very first. Both of the beautiful types were CT-scanned so that scientists could analyze their courage without selecting the mammoths apart, and initial conclusions about the couple were provided at the convention by grad student Ethan Shirley and paleontologist Daniel Fisher from the Higher education of Mich.

The community of the two newborn mammoths was a little bit different from our own. During their time the excellent areas of Siberia were carpeted by a freezing, dry grassland flecked with plants known as the "mammoth steppe." Both large leg muscles passed away at about the same interval in their daily life. According to Fisher, the two were within times or even several weeks of being the same age. Day-to-day collections of development on their little the pearly whites – known as neonatal collections – validate this. And Khroma, like Lyuba, seems to be women centered on CT assessments of urogenital region. But that is nearly all the two mammoths reveal in typical.

So far, more is known about Lyuba. Past research determined her as a little woolly large who passed away just about 42,000 decades ago. But no one yet knows the geologic age of Khroma. A as well as relationship analyze on Khroma came back an unlimited outcome – an indicator that she probably passed away before 100,000 decades ago and is therefore beyond the variety of as well as relationship. Further assessments to assess how extensive ago she trod across primitive Siberia are believed out.

Exactly what types of large Khroma belonged to is also a secret. Moreover to reduced feet, Khroma also has a increased, more effective brain and what Shirley and Fisher are getting in touch with a "moustache" of little lumps designed by little parts of cuboid around her little tusks. At first they believed these attributes recommended Khroma is a men and that sex-related variations revealed up at an beginning age in woolly mammoths, but this doesn't appear to be the situation. Either the variations are aspect of the normal difference in woolly mammoths, Shirley and Fisher suggest, or Khroma may be a different types.

Lyuba and Khroma are also opposites with regards to their maintenance. Less skin weighs off the cuboid of Khroma, but the staying smooth cells are actually better stored. Shirley and Fisher suppose this is because Khroma was easily freezing and protected up soon after she passed away. Lyuba, however, has a increased variety of more poorly-preserved skin. Fisher offers this is because Lyuba was "pickled" by viruses during a interval which she installed out before ultimate maintenance. The pickling procedure not only stored Lyuba's skin, but she may have been so position during this stage that no scavenger desired to take a attack.

The two newborn mammoths were not the first of their type to be discovered. Nor are they likely to be the last. In the European higher Arctic, Fisher described, large tusks can be a considerable advantage to poverty-stricken individuals who deliver those past into Asia and China's starving cream color marketplaces. (At now, the deal in traditional cream color from Italy is lawful.) Unusual types with complete soft-tissues – such as Lyuba, Khroma, and Dima before them – are often discovered due to the tusk tracks. Researchers just have to wish they can get to them before they fade away into the industry.

For more information related to dinosaurs, visit rareresource.com.

Stunning Old discovers taking up all over China

2012-01-27T21:46:00.000-08:00

Inside an air hangar in the center of the outlying in China’s Shandong region, 600 miles south of The far east, paleontologist Xu Xing is absently viewing a tipsy, red-faced traveler. The man has taken off his sneakers and plopped down for images before side of the fossilized femur of a big hadrosaur—a duck-billed dinosaur that roamed the world 99 thousand generations ago during the overdue Cretaceous interval. The cuboid is located in a heap of precious metal clothing and appears about 1.5 measures high. A indication in The far east motivates guests to provide it a stick. “Rub, rub a dinosaur cuboid,” says the ditty, evoking a typical regional thinking that drawing dinosaur cuboid can carry success.

Chinese paleontologists have managed a lot of past in newest years—the area is remove with new discovers in Middle Japan. Zhucheng, where Xu does fieldwork, is house to the nation's newest and most spectacular quarry of pumpkin heads or scarecrows. In a trench not far from the hangar, huge fossilized cuboid are existing across the exterior of the sandstone mountain, confusing aimlessly in a way that indicates a mega-catastrophe occurred here nearly 10 many years ago.

The chest of past at Zhucheng is probably the biggest individual put in of dinosaur cuboid on the world. And it’s just the newest in a sequence of spectacular developments by the 42-year-old Xu, that is probably assisted find out more essential discovers than any other dinosaur seeker on the world. “I am quite certain that Xu Xing has described more new types of dinosaurs than anyone in the record of dinosaur paleontology,” says Chris Dodson, lecturer of paleontology at the Greater education of California and coeditor of the publication The Dinosauria. While Xu does not keep in mind accurately how many new types he’s discovered, he considers he’s at “around 30.” In the last 15 generations, Xu has provided to the development of feathered dromaeosaurs in Liaoning, theropods in Xinjiang, and the ostrichlike Sinornithomimus in Inner Mongolia—all of which are assisting to modify the way experts all over the community comprehend the everyday life and progress of dinosaurs.

“China is a very big nation with an terrible lot of stones of just the right type,” describes Mark Develop, a Terminology paleontologist who used three generations operating at Zhucheng. While South The united states is house to dinosaurs from the overdue Triassic (228 thousand to 199.6 thousand generations ago), overdue Jurassic (161.1 thousand to 145.5 thousand generations ago), and overdue Cretaceous times (99.5 thousand to 65.5 thousand generations ago), experts were discovering little in between. The far east, Develop says, is assisting to comprehensive the breaks in the schedule of dinosaur progression and in their regional actions. Parallels between types in South The united states, Japan, and European countries can help experts find dinosaur migration across area public that no more are available. Findings in Liaoning and Xinjiang are also assisting experts solve the progress of modern-day wildlife, a family tree Xu considers starts with dinosaurs. One of Xu’s most newest developments, the chicken-size Xiaotingia zhengi, is providing experts cause to reconsider the distinction of the Archaeopteryx, extensive regarded the oldest-known hen. The Xiaotingia zhengi, Xu claims, provides proof that both types were, actually, feathered dinosaurs, not full-fledged wildlife.

In inclusion to deepening the comprehension of dinosaur progression internationally, China’s dinosaur blast has powered Xu, a organic scientists, onto the around the world level. Xu matured up in Ili prefecture in traditional european Xinjiang region, a distant Middle Oriental outback surrounding Kazakhstan. When he was allocated to the paleontology workplace at The far east Greater education, he had never observed of dinosaurs before examining his acceptance documents. “I took the newspaper to my high-school trainer,” Xu says. “He just didn't know what [paleontology] was either—he just said, ‘This is probably a new workplace. I think it’s high-tech or something like that.’” Xu revealed up at university supposing he’d be utilizing computer systems.

It took generations for Xu to accept the occupation. He used to a master’s plan in paleontology only because it would allow him to remain in The far east. His attention was lastly spurred when his workplace began getting some more uncommon past to research. Xu still honors his first little ceratopsian, a horned being relevant to the South National Triceratops. “I think, in the end, I was created to be a paleontologist,” he now says. Xu acquired Terminology so he could post in around the world magazines, where he regarded the expectations were higher. “In the Nineties, there were already some remarkable past discovered in The far east,” he says, Yet none of them had drawn attention around the world. All the documents were released in The far east magazines.” Not only are there language limitations in paleontology, but the design of technology is often different in China—with no custom of disagreement or look review—and, in many situations, the technology is outdated.

The first The far east dinosaur was discovered in the Twenties, but for many the several experts in the area proved helpful without the appropriate features to aid their discovers. These days, around the world relationship and a greater variety of financing resources has assisted The far east archeology develop. “There used to be only one or two funds given out [from family institutions] every season,” Xu says. “Now there are nine or 10.” China’s fast progression has assisted enhance archeology in another way—more structure tasks mean more possibilities to find past. As a master’s student, Xu says, it was challenging to come by any past at all. The share of available past was lesser, and the best were often set aside for more experienced experts. Now his workplace at the Initiate of Vertebrate Paleontology and Paleoanthropology is unfolding with them. “I keep in mind seeing this tyrannosaur products just clinging around [Xu’s] workplace,” says the Terminology scientists Develop. “Finally Xu said, ‘I’m too busy; do you want to [study] this?’” Develop just didn't think twice to say yes.

Although paleontologists have known about the website at Zhucheng for more than two generations, experts just didn't find out its tremendous dimension until they came on the major quarry in 2008. Since then, the seven-ton tyrannosaur that Develop proved helpful on—a Zhuchengosaurus maximus, from the overdue Cretaceous—is only one of the nine new types to come out of the 300-meter-long trench. The website rests on the borders of a town known as Lengthy Gu Xian, or Monster Bone Village. (The The far east concept for dinosaur reads as “scary dragon.”) Fossils have been taking out of the stones here for decades. Moreover to being huge, the quarry is heavy with cuboid. “The website is quite outstanding,” Dodson says. “I can't even think of a tale that would describe why all those past are there.” The occurrence that murdered the types is still a mystery: Xu believes a landslide attractive the dinosaurs apart and confusing their bones; Develop believes the creatures were already deceased and rotting when their pumpkin heads or scarecrows were taken to this identify by a large overflow or mud circulation.

The major trench at Zhucheng is packed with duck-billed hadrosaurs. Additionally now interesting scientists, however, are the other types existing more sparsely throughout the website. Only a few cuboid of the Zhuchengosaurus maximus were discovered among the hadrosaurs, says Develop. Researchers may not have a comprehensive bones yet, but they have the most essential part: the maxilla, the larger aspect of the nasal area and jaw. “Tyrannosaur maxilli are really unique from each other,” says Develop, “and this is something amazingly near to T. rex.”

The website has also created the only huge ceratopsian discovered in Japan. The not enough ceratopsian past on there are had extensive confused experts. Many South National dinosaur types also inhabited Japan, indicating the use of a area hyperlink over the Hawaiian Beach during the overdue Cretaceous. But the not enough ceratopsians offered a prospective drawback in the theory—one that was settled by the use of the Sinoceratops, Xu says. Moreover to offering more proof for the everyday living of a now-submerged hyperlink between the two areas, the development indicates there are more developments to be created. “There are very identical associates on both factors of the split,” says Develop. “Now we’ve got one, we should begin discovering others.”

Walking through the trench at Zhucheng, Xu is assured that there are more developments to come. He breaks at the cuboid of a yet-unnamed types, its bones huge of the mountain. “That is a very, very uncommon dinosaur,” he says fortunately. “As a scientists, you always want to find a really uncommon dinosaur.”

For more information related to dinosaurs, visit rareresource.com.

600 thousand year old place past found in China

2012-01-25T21:08:00.000-08:00

Paleontologists in The far east have uncovered a large number of items of place past since about 600 thousand decades, authorities said.

A spokesperson with the administration of Xiuning nation in Anhui region said the past were from the Sinian period (825 thousand to 570 thousand decades ago), Xinhua revealed.

The vegetation resided in the heated short sea that used to cover Xiuning an incredible number of decades ago, said Yuan Xunlai, a paleontologist with the Nanjing Initiate of Geology and Paleontology, which was in cost of the excavation.

According to the spokesperson, the nation will develop a nationwide geopark to secure the past and offer vacationers a opportunity to learn about the vegetation that resided an incredible number of decades before dinosaurs.

For more information related to dinosaurs, visit rareresource.com.

Unusual traditional of sea diamond uncovered in Alberta oilsands

2012-01-25T21:04:00.000-08:00

It's not just dark-colored precious metal that's being found from south Alberta's oilsands — the place is also producing a exclusive value chest of historic past.

The place, which contains one of the biggest confirmed raw oil stocks on the planet, was once protected by an historic sea.

Last weeks time, Maggy Horvath, a hefty apparatus owner at Syncrude, uncovered a nearly comprehensive plesiosaur traditional during her switch.

It's the Tenth traditional discovered on renting presented by the oil huge. Researchers say it's one of the larger ones — up to 20 meters extensive and "mostly fretboard."

"I think it's great that I'm aspect of this. It sensed decent to contact my son and let him know that I discovered a primitive traditional while operating in the my own," said Horvath.

"As employees we always keep our face out for a discover."

The plesiosaur sought after species of fish with its extensive fretboard and a big mouth area complete of razor-sharp, razor-sharp the pearly whites 100 thousand decades ago. It carefully appears like the well-known community graphic of the Loch Liness creature.

Scientists and experts from the Noble Tyrrell Art gallery of Paleontology are analyzing the traditional. They want to have the sample eliminated by the end of the weeks time.

"This is a unusual discover. It's a ... sea diamond with a very extensive fretboard, small go and shorter body. The last one retrieved was 10 decades ago," said Don Brinkman, manager of maintenance and analysis at the Tyrrell old museum.

"We are expecting that this is another sample of this type of plesiosaur. The new sample is particularly essential because it looks to be nearly comprehensive."

Alberta's oilsands are in an place that was once aspect of a primitive sea and have produced several essential sea diamond past. The last one discovered in 2000 was announced to be one of the most comprehensive Cretaceous Ichthyosaurs of its age ever discovered in South The united states.

It's the second significant discover this season. In Goal, a personnel at Suncor came across one of the most ancient old past ever uncovered in Alberta at a my own south of Ft McMurray.

The 110-million-year-old continues to be were of an ankylosaur, a plant-eating old with a huge trail. It was hidden below a km of soil and protected in mountain.

Syncrude has a method for traditional discovers, which needs an owner to quit burrowing in the immediate place and inform Syncrude's geologist, who performs with the Noble Tyrrell on traditional developments.

"This is a very interesting development for us at Syncrude and for all Albertans," said chief executive and CEO Scott Sullivan.

For more information related to dinosaurs, visit rareresource.com.

Palaeontologists create new way to discover new dig sites

2012-01-23T21:28:00.000-08:00

National technology magazines are putting the highlight on two Traditional european Mich Higher education instructors for finding a new way to estimate where previous are invisible.

Traditionally, finding previous is a "serendipitous and intuitive" occurrence that comes with lots of examining and success.

Paleontologist and WMU anthropology lecturer John Anemone and WMU location affiliate lecturer Charles Emerson said technological innovation are available and should be used to create signs about where traditional websites are located.

Their investigated strategy - using a sensation problems system, infra-red radio waves and tv television image - is being acknowledged as a possible option to help paleontologists put in priority where to spend a while and options out in the area with better outcomes.

Glenn Conroy, an structure and anthropology lecturer at Oregon Higher education, was a associate in creating this strategy.

The instructors were welcomed to present the sensation problems system strategy at the World for Vertebrate Paleontology getting together with in Las Nevada last week and were presented in nationwide medical magazines Characteristics and New Researchers.

Finding previous

During a area adventure, paleontologists stay out in a location and use their visitors and other options to search for traditional value.

"We understand the geology of the location and we don't just walk around but in the area it's a lot of feelings," Anemone said. "We want to add a more comprehensive, predictive device and we're trying to innovator the use of new options from regional sciences in the search for previous."

Anemone has been major area teams of learners and other experts to the Great Split Container in north european Wy since 1993 to gather mammal bone and previous from the Paleocene and Eocene times, 55 to 48 thousand decades ago.

In 2009, Anemone's team took a wrong turn and found themselves in an land area with familiar attributes or suggestions of positioning previous. They "crawled around" for an hour and there it was: at least 100 partially mammal lips with teeth.

It was the biggest discover he ever "stumbled upon," he said, with the development of one new mouse types and two new types of early primates that roamed the world 50 thousand decades ago.

He said if the mouse were around these days, it'd be some sort of "desert rabbit."

"It's not just record, it's pre-history," he said. "It's the deep previous. Fifty thousand decades ago the only way we know what the world was like and the existing population that persisted is by people going out and gathering previous and examining the geology of the elements that were in existence."

A better way

After the big discover, Anemone said he realized there had to be a better way.

He requested Emerson, who has an comprehensive knowledge of tv television image, to get involved truly. They joined to create the sensation problems system strategy and have been performing analysis for the last year.

"We recommend that the geospatial sciences have gained a place in the paleoanthropological device kit, and that Modern day analysis must progressively more depend on the kinds of innovative spatial descriptions that can only come from partnerships with our fellow workers in the regional and geospatial sciences," it says in their study.

While the use of GPS and tv television image is not entirely new in the occupation, this strategy goes further by exercising a sensation problems system - or the software mind - to recognize you will and radio waves data of a landscape designs to venture the prospect of finding previous.

By exercising the system to recognize "the fingerprint" of successful traditional websites, they hope it can discover more.

New strategy

The outcomes are ensuring, with 85 percent reliability in the examining level. Next summer their style will be used to recognize where to perform area analysis. The outcomes will show if the strategy actually improves the number of traditional discovers.

Gerald Jackson, the curator emeritus in the Higher education of Mich Art gallery of Paleontology, joined the Las Nevada getting together with and said the sensation problems system strategy has the potential to modify the area.

"Some of us used the day after the activities looking for new traditional websites without any success, so in the future it's possible that their strategy will be an important device," he said.

For Anemone, more previous means more analysis.

"In time we are working with - 50 thousand decades ago - there was a major occurrence of around the world," he said. "The international environment was hotter than what it had ever been, so we are interested in the effects of coffee in the last on life so we better make for coffee these days by seeing the last activities."

For more information related to dinosaurs, visit rareresource.com.

Amazing past expose the first proof of public conduct in mammals

2012-01-23T21:25:00.000-08:00

Evidence of way of life and public conduct is almost never stored in the traditional record. Now, a variety of scientists from the Muséum nationwide d'Histoire naturelle (Paris), CNRS (Paris) and Museo de Historia naturel Alcide d'Orbigny de Cochabamba (Bolivia) has excavated an outstanding selection of many small mammal skulls and pumpkin heads or scarecrows from the Tiupampa site in the middle Andes in Bolivia that provides convincing traditional proof of public conduct. A study of these continues to be, released this week in Characteristics, shows the most ancient example of group-living in creatures.

Today, many creatures reside in categories. Others, such as most marsupials (which include the Southern National opossums and Australia koalas and wombats), are stringently individual. We know very little about public conduct of traditional creatures, because only hardly ever is the variety of stored people huge enough to offer proof of group life.

Now, the development of a inhabitants of a mouse-sized historic family member of marsupials (Pucadelphys andinus) from the beginning Tertiary (64 thousand decades ago) in Bolivia shows that group-living showed up beginning in the mammalian record, and may even stand for the our ancestors condition for creatures as a whole.

Exceptional maintenance

The the greater part of traditional creatures are known from separated teeth, or, at best, pieces of jawbones. Skulls or pumpkin heads or scarecrows are extremely unusual and are usually broken or imperfect. In this perspective, the development of complete skulls and pumpkin heads or scarecrows which represents 35 people of the historic marsupial family member Pucadelphys andinus within an area of only a few rectangle meters, is really a major event in our knowledge of mammalian record and the progress of public conduct.

Social life and sex-related dimorphism

This development provides proof that, as opposed to existing marsupials, marsupial family members from the starting of the Tertiary interval resided in categories. In addition, the mouse-sized Pucadelphys exihibits strong sex-related dimorphism, with the men having a bigger and more effective brain and much bigger pets than women.

Among the 22 best stored pumpkin heads or scarecrows and skulls, the experts have been able to recognize 6 men, 12 women and 4 sub-adults, for which sex is not determinable. The use of such a huge amount of people in only a few of rectangle meters, together with their noticeable sex-related dimorphism, indicates that Pucadelphys resided in categories, with competitors between men for women and a polygynous multiplying system (one male partners with more than one female). The environment of Bolivia 64 thousand decades ago seems to have been exotic, and so Pucadelphys probably produced anytime, as opposed to the periodic reproduction conduct seen in creatures that reside in moderate or cold environment parts.

The Tiupampa inhabitants of Pucadelphys resided on the financial institutions of a big exotic stream and was most probably surrounded by a rapid display overflow. We know that these creatures were fossilized on the spot because their continues to be are too well stored to have been carried. Thus, these 35 people resided and passed away together in a single team, 64 thousand decades ago.

The Bolivian past offer us with the first proof of group-living in creatures and expose a previously mysterious part of their public conduct at the very starting of the Tertiary interval – the so-called “Age of mammals”.

For more information related to dinosaurs, visit rareresource.com.

Rare Clovis artifacts document Boulder's prehistory

2012-01-19T21:43:00.001-08:00

Thirteen thousand years ago, Clovis people roamed The Hill, and there are 83 stone age tools to prove it. Archaeologists now believe the prehistoric people may have had an ice age megafauna butchering station along the banks of Gregory Creek, where the tools were discovered.

In May of 2008, landowner and biotechnology entrepreneur Patrick Mahaffy hired landscapers to excavate part of his yard to create a pond. When one of the crew members heard an unusual chink, he stopped to investigate. They had stumbled upon a collection of 83 stone implements.

Mahaffy was curious about the implements, which he thought might be Native American and possibly a few hundred years old. He telephoned the University of Colorado's anthropology department. Luckily, he reached Dr. Douglas Bamforth, an expert on ancient people and their use of stone tools. Bamforth walked over to take a look.

He was astounded at what Mahaffy had discovered. Experts at the Laboratory of Archaeological Science at California State University, Bakersfield were consulted. Analysis to determine the age of the implements would be costly, but Mahaffy gladly paid out of his own pocket.

After some months, the unprecedented results of the protein residue analysis were made public. The results were international news. The tools contained the blood of prehistoric mammals including camel, bear, horse and sheep, the megafauna that roamed over North America 13,000 years ago during the Pleistocene.

It was the first analysis to identify protein residue from an extinct camel on North American stone tools and only the second to identify horse protein on Clovis-age tools, according to Bamforth. The rare find, which was officially named the Mahaffy Cache, is one of only a few Clovis artifact group discoveries in North America.

The Clovis people mysteriously disappeared from the earth about the same time as the ice-age mammals also became extinct.

One scientific theory is that a group of comets exploded over North America, creating massive heat that caused the extinction of ice age mammals, and perhaps the Clovis people, too. Clovis people were once thought to be the first human inhabitants of the New World, but new archaeological discoveries have called that belief into question.

The 83 tools of the Mahaffy Cache themselves are made of Kremmling chert, rock material found on Colorado's Western Slope. They are not hunting tools, but were probably used for butchering the animals for food.

Mahaffy described the tools as perfectly ergonomic, fitting beautifully into a human hand.

In 2009, Patrick Mahaffy was recognized with a special project award, given by the Boulder Heritage Roundtable, for his dedication to preservation of the ancient historic materials.

Shortly after the discovery, the biopharmaceutical entrepreneur named his new company Clovis Oncology.

Although Mahaffy intended for most of the tools to be on exhibit for the public, they have not yet been made available.

For more information related to dinosaurs, visit rareresource.com.

Mammals' tusked ancestor roamed Australia

2012-01-19T21:41:00.000-08:00

Scientists say rare fossils found in Tasmania's south-east prove that an ancient species of prehistoric animal did exist throughout Australia. The dicynodont was an early ancestor of modern-day mammals and lived about 250 million years ago.

Roughly the size of a cow, the plant-eating animal had two tusks and a horny beak. Queensland Museum palaeontologist Andrew Rozefelds says they lived on every continent, including Antarctica.

But until now, the only Australian specimen was found in Queensland almost 30 years ago. He says it is surprising more remains have not been found, given the animal's size.

"There must be more material out there to be found," he said. "Obviously we'd love to find more, because at the moment, [of] this entire group of animals called dicynodonts, there's only about four bones known from Australia. We've got better fossil records from Antarctica for these animals than we have for Australia."

He describes the dicynodont as a bizarre-looking creature. "They're a strange-looking beast," he said. "They had tusks at the front of their skull, which makes you think maybe they were a carnivore but in fact they were a plant eater. They had slightly splayed legs, so their posture was quite different to say some of the modern mammals you see and they're very, very distantly related to modern mammals."

For more information related to dinosaurs, visit rareresource.com.

Globe's most significant old oral represents discovered in S. Korea

2012-01-18T22:12:00.000-08:00

South Japanese scientists said Wednesday that they have discovered the most significant fossilized oral represents of a meat-eating old in the nation's southeastern region.

The uncommon oral results, discovered on the tailbone of the adult herbivorous old Pukyongosaurus from the early Cretaceous interval of the Mesozoic Era, calculated 17 cm long, 2 cm wide, and 1.5 cm deep, the lengthiest and greatest results ever discovered on the planet, according to Paik In-sung, a lecturer at Pukyong Nationwide Higher education, who led the analysis.

The tailbone traditional itself was discovered in 2008 in Hadong, Lower Gyeongsang State, some 470 miles south of Seoul, Paik included.

The W-shaped represents displaying the two teeth of the old form razor-sharp lines in the cuboid and were presumably personalized there when the predator bit meats off the carcass, according to Paik.

Apart from the most significant oral represents, many oral results of different patterns and sizes were also discovered on the tailbone, which offers understanding into the providing conduct of meat-eating dinosaurs that resided on the earth some 120 thousand decades ago, Paik said.

"The development of both small and big oral represents on 1 cuboid of a plant-eating old assists as identifying proof that the meat-eating dinosaurs in the past had dietary habits of taking advantage of 1 sauropod carcass, identical to that of modern carnivores," he included.

The study, financed by the nation's Secretary of state for Education, Science and Technology and the Nationwide Research Groundwork of South korea, was released on the online edition of the paper Palaeogeography, Palaeoclimatology, Palaeoecology last week.

Palaeontologists say dinosaurs resided in Lower South korea from 120 thousand to 80 thousand decades ago, throughout much of the Cretaceous interval, the last stage of the Mesozoic era and the prime for dinosaurs. Their past, relatively well-preserved and discovered in a thoroughly different array across the the southeast part of Lower Japanese shorelines, are currently authorized on a preliminary list of U.N. Community History sites, en path to getting major identification.

For more information related to dinosaurs, visit rareresource.com.

More on 150 million-year-old old past uncovered in Chongqing

2012-01-18T22:10:00.000-08:00

Recently, a comprehensive old bones was discovered and will soon be uncovered in the suburb of Qijiang Nation in Chongqing. Archaeologists generally recognized it as a Sauropod, old and it would be the first such traditional uncovered in this place.

Chongqing is known as "a town designed on dinosaur's supports," and fossils' of dinosaurs are discovered in most of the 40 parts of Chongqing City, which has an place of 82,000 rectangle miles.

Qijiang is one of the parts in Chongqing where dinosaurs' monitors and past were discovered. In 2003, experts discovered the most significant set of old foot prints team from the center Cretaceous interval in China's free airline place in a diamond give at Qijiang.

For more information related to dinosaurs, visit rareresource.com.

Bone to select atChina's Old Valley

2012-01-17T21:27:00.001-08:00

Paleontologists are still thinking on the secret of how China’s dinosaurs multiply as well as the purpose behind their extinguished.

IN The far east lifestyle, the monster is a icon of the best success.

The The far east happily recognize themselves as long de chuan ren, or enfant of the monster.

Perhaps this captivation for the being is resulting from a true star from the past instead of a belief.

The idea does not seem as far-fetched after a trip to the Lufeng Old Area in Chuxiong, Yunnan, The far east.

At 10,000 sq meters, the Lufeng Old Area is globe's most significant preservation website of dinosaur past, also known as monster bones to the The far east.

Placed 60km from Yunnan region investment Kunming, the Old Area provides readers an experience not as opposed to Steven Spielberg's Jurassic Playground.

On introduction, readers are welcomed by four 28m high pebble content personalized with dinosaur elements.

A five-minute tramcar trip provides a beautiful perspective before hitting the Old Platform Stay.

Guests are then led into an air-conditioned present area with a trip on China's pre-historic past.

Inside, over 60 legitimate pumpkin heads or scarecrows are on present, with the most significant traditional being that of Chuanjiesaurus.

Calculating 27m long, the continues to be are regarded the best and most significant discovered in Japan.

The guideline also provides exciting information on these ancient leaders.

For example, a meat-eating dinosaur bones can be separated from a herbivorous one by the nails and the pearly whites.

The herbivore usually has honest and smooth the pearly whites.

A plexi-glass ground designed over a large website, where more than 400 past are considered to be hidden, allows readers a look of the past in their unique situation.

The fantastic development of the past, which go back over 240 thousand years however, still harbor some unresolved secrets such as how the several past were discovered in the same area and were so well stored.

Also, not a single egg was discovered amongst the several pumpkin heads or scarecrows of various greedy and herbivorous types,

Scientists are still thinking on the secret of how China's dinosaurs multiply as well as the purpose behind their extinguished.

The guideline also unveiled that the local communities were known to gather certain bones, such as the backbone of a Chuanjiesaurus to use it as an oil light.

Some of the past were also used to make drops as well as cure ailments.

These methods continued until Dr Zhongjian (1897-1979), regarded the creator of The far east paleontology and dinosaur research, excavated China's first dinosaur past in Shawan, south western of Lufeng in 1938.

From then, Dr devoted his life to research and paleontology in The far east. He has taken cost at the excavation website of the Peking Man in Zhoukoudian.

At the end of the trip, readers are taken on a 10-minute tram trip of the substance to observe a spectacular perspective of the nearby valleys and hillsides. Life-sized identical of dinosaurs are smartly placed to show how the ancient "dragons" may once have roamed the world.

For more information related to dinosaurs, visit rareresource.com.

Predator decided before dinosaurs

2012-01-17T21:24:00.000-08:00

Paleontologists have found the brain of a unusual but dangerous mammal-like creature that terrorized South the united states extensive before dinosaurs decided the world.

The sample is from the Permian interval, more than 260 thousand decades ago. The comprehensive brain methods about 13 in. (35 centimeters) long and was found in 2008 during a technological excavation on a town in the pampas location of Rio Grandes do Sul in lower South the united states. The brain came from a being that was aspect of a sounding long-extinct vertebrates known as dinocephalian therapsids, which predated the dinosaurs and were distantly relevant to animals.

In an appointment with Development Information, cause specialist Juan Carlos Cisneros of Brazil's Government Higher education of Piaui said the pet was a corner between "a competition and a Komodo monster, if you can suppose." A review about the traditional was released online these days in the Process of the Nationwide School of Sciences.

The being has been named Pampaphoneus biccai: The Latin-derived genus name approximately reads as "pampas fantastic," and the types name will pay honor to Jose Bicca, the property owner of the town where the brain was found. The traditional site was recognized through an evaluation of satellite tv image from The search engines Soil.

Cisneros informed me in an e-mailed review that the discover is important for two reasons: First, Pampaphoneus is the first Paleozoic terrestrial carnivore found in The southeast part of America. Mixing this discover with formerly developments of plant-eaters from the same period will help paleontologists "picture a more comprehensive environment during the Permian interval," the review said.

Second, the brain indicates that this The southeast part of National types was a close comparative to identical dinocephalians formerly found in Italy and The southeast part of African-american. That can handle the concept that therapsids were able to spread easily from one aspect of the Pangaea supercontinent to the other, during an age when most of Global modern-day area public were attached together.

The therapsids were worked a hefty strike 250 thousand decades ago in an extinguished occurrence known as the "Great Passing away." During the Triassic interval that followed, they offered way to the dinosaurs — but their far away family members in the mammalian group once again concept the world.

For more information related to dinosaurs, visit rareresource.com.

Stunning Old discovers taking up all over China

2012-01-16T19:08:00.000-08:00

Inside an air hangar in the center of the nation in China’s Shandong region, 600 miles south of The far east, paleontologist Xu Xing is absently viewing a tipsy, red-faced traveler. The man has taken off his sneakers and plopped down for images before side of the fossilized femur of a big hadrosaur—a duck-billed dinosaur that roamed the world 99 thousand generations ago during the overdue Cretaceous interval. The cuboid is located in a heap of precious metal clothing and appears about 1.5 measures high. A indication in The far east motivates readers to provide it a stick. “Rub, rub a dinosaur cuboid,” says the ditty, evoking a typical regional thinking that drawing dinosaur cuboid can carry success.

Chinese paleontologists have managed a lot of past in newest years—the area is remove with new discovers in Middle Japan. Zhucheng, where Xu does fieldwork, is house to the nation's newest and most amazing quarry of pumpkin heads or scarecrows. In a trench not far from the hangar, huge fossilized cuboid are existing across the exterior of the sandstone mountain, confusing aimlessly in a way that indicates a mega-catastrophe occurred here nearly 10 many years ago.

The chest of past at Zhucheng is probably the most significant individual put in of dinosaur cuboid on the world. And it’s just the newest in a sequence of amazing developments by the 42-year-old Xu, that is probably assisted find out more essential discovers than any other dinosaur seeker on the world. “I am quite certain that Xu Xing has described more new types of dinosaurs than anyone in the historical past of dinosaur paleontology,” says Chris Dodson, lecturer of paleontology at the Greater education of California and coeditor of the publication The Dinosauria. While Xu does not keep in mind accurately how many new types he’s discovered, he considers he’s at “around 30.” In the last 15 generations, Xu has provided to the development of feathered dromaeosaurs in Liaoning, theropods in Xinjiang, and the ostrichlike Sinornithomimus in Inner Mongolia—all of which are assisting to modify the way experts all over the community comprehend the life and progress of dinosaurs.

“China is a very big nation with an dreadful lot of stones of just the right type,” describes Mark Develop, a Terminology paleontologist who used three generations functioning at Zhucheng. While South The united states is house to dinosaurs from the overdue Triassic (228 thousand to 199.6 thousand generations ago), overdue Jurassic (161.1 thousand to 145.5 thousand generations ago), and overdue Cretaceous times (99.5 thousand to 65.5 thousand generations ago), experts were discovering little in between. The far east, Develop says, is assisting to comprehensive the breaks in the schedule of dinosaur progression and in their regional actions. Parallels between types in South The united states, Japan, and European countries can help experts find dinosaur migration across area public that no more are available. Findings in Liaoning and Xinjiang are also assisting experts solve the progress of modern-day wildlife, a family tree Xu considers starts with dinosaurs. One of Xu’s most newest developments, the chicken-size Xiaotingia zhengi, is providing experts cause to reconsider the distinction of the Archaeopteryx, extensive regarded the oldest-known hen. The Xiaotingia zhengi, Xu claims, provides proof that both types were, actually, feathered dinosaurs, not full-fledged wildlife.

In inclusion to deepening the comprehension of dinosaur progression internationally, China’s dinosaur surge has powered Xu, a organic scientists, onto the around the world level. Xu matured up in Ili prefecture in american Xinjiang region, a distant Middle Oriental outback surrounding Kazakhstan. When he was designated to the paleontology workplace at The far east Greater education, he had never observed of dinosaurs before examining his acceptance documents. “I took the newspaper to my high-school trainer,” Xu says. “He just didn't know what [paleontology] was either—he just said, ‘This is probably a new workplace. I think it’s high-tech or something like that.’” Xu revealed up at university presuming he’d be utilizing computer systems.

It took generations for Xu to accept the occupation. He used to a master’s plan in paleontology only because it would allow him to remain in The far east. His attention was lastly spurred when his workplace began getting some more uncommon past to research. Xu still honors his first little ceratopsian, a horned being relevant to the South National Triceratops. “I think, in the end, I was created to be a paleontologist,” he now says. Xu acquired Terminology so he could post in around the world magazines, where he regarded the expectations were higher. “In the Nineties, there were already some remarkable past discovered in The far east,” he says, Yet none of them had drawn attention around the world. All the documents were released in The far east magazines.” Not only are there language limitations in paleontology, but the design of scientific disciplines is often different in China—with no custom of disagreement or look review—and, in many situations, the scientific disciplines is old.

The first The far east dinosaur was discovered in the Twenties, but for many the several experts in the area proved helpful without the appropriate amenities to aid their discovers. These days, around the world relationship and a broader variety of financing resources has assisted The far east archeology develop. “There used to be only one or two funds given out [from every day institutions] every season,” Xu says. “Now there are nine or 10.” China’s fast progression has assisted enhance archeology in another way—more development tasks mean more possibilities to find past. As a master’s student, Xu says, it was challenging to come by any past at all. The share of available past was lesser, and the best were often set aside for more experienced experts. Now his workplace at the Company of Vertebrate Paleontology and Paleoanthropology is unfolding with them. “I keep in mind seeing this tyrannosaur products just clinging around [Xu’s] workplace,” says the Terminology scientists Develop. “Finally Xu said, ‘I’m too busy; do you want to [study] this?’” Develop just didn't think twice to say yes.

Although paleontologists have known about the website at Zhucheng for more than two generations, experts just didn't find out its tremendous dimension until they came on the major quarry in 2008. Since then, the seven-ton tyrannosaur that Develop proved helpful on—a Zhuchengosaurus maximus, from the overdue Cretaceous—is only one of the nine new types to come out of the 300-meter-long trench. The website rests on the borders of a town known as Long Gu Xian, or Monster Bone Village. (The The far east concept for dinosaur reads as “scary dragon.”) Fossils have been taking out of the stones here for decades. Additionally to being huge, the quarry is heavy with cuboid. “The website is quite outstanding,” Dodson says. “I can't even think of a tale that would describe why all those past are there.” The occurrence that murdered the types is still a mystery: Xu believes a landslide attractive the dinosaurs apart and confusing their bones; Develop believes the creatures were already deceased and rotting when their pumpkin heads or scarecrows were taken to this area by a large overflow or mud circulation.

The major trench at Zhucheng is packed with duck-billed hadrosaurs. Additionally now interesting scientists, however, are the other types existing more sparsely throughout the website. Only a few cuboid of the Zhuchengosaurus maximus were discovered among the hadrosaurs, says Develop. Researchers may not have a comprehensive bones yet, but they have the most essential part: the maxilla, the larger aspect of the nasal area and jaw. “Tyrannosaur maxilli are really unique from each other,” says Develop, “and this is something amazingly near to T. rex.”

The website has also created the only huge ceratopsian discovered in Japan. The insufficient ceratopsian past on there are had extensive confused experts. Many South National dinosaur types also used Japan, hinting the use of a area hyperlink over the Hawaiian Beach during the overdue Cretaceous. But the insufficient ceratopsians offered a prospective drawback in the theory—one that was settled by the use of the Sinoceratops, Xu says. Additionally to offering more proof for the everyday living of a now-submerged hyperlink between the two areas, the development indicates there are more developments to be made. “There are very identical associates on both factors of the split,” says Develop. “Now we’ve got one, we should begin discovering others.”

Walking through the trench at Zhucheng, Xu is assured that there are more developments to come. He breaks at the cuboid of a yet-unnamed types, its bones huge of the mountain. “That is a very, very uncommon dinosaur,” he says fortunately. “As a scientists, you always want to find a really uncommon dinosaur.”

For more information related to dinosaurs, visit rareresource.com.

Traditional security popular first complete old bone uncovered in English Columbia

2012-01-16T19:06:00.000-08:00

B.C.’s dinosaur-rich nation has coughed up its first full-sized bone — a nine-metre-long being from 75 thousand decades ago.

Now professionals would like a law to secure the relax of the province’s historic money — until they too can be found and stored.

Paleontologist Vibrant McCrea said Wednesday the unusual new development is the finale of two summer season of back-breaking work at a key hillside place near Stemless glass Form.

“We went looking for it and got fortunate,” he said. “It is the first time this has been done in B.C.

“We have a complete bone from the center of the trail to the back. There are complete body and one leg.

“We’re still looking for the brain.”

With such a huge selection of bone, McCrea said professionals consider the bone “complete.”

He said the site — and several other ensuring places found september — point to the need to secure B.C.’s history with provincial regulations that would avoid random devastation.

“Specific legal guidelines is required, not fossil administration,” McCrea said.

The historic being, which may gradually be ripped in the Serenity River’s Paleontology Analysis Center and art gallery, is a four-tonne plant-eater known as a hadrosaur.

It had a duck-like expenses and liked to eat on many simply actually leaves, wooden needles and wooden arises.

The jaw was something for the age range — a double-battery of 2,000 farming the pearly whites attached in eight lines on each side, McRae said.

It resided in a semitropical swamp much like a “Louisiana bayou,” set on the coast of an tremendous national sea advancing over the present-day prairies.

McCrea cannot say how it passed away, but razor-sharp the pearly whites from several two-legged, meat-eating tyrannosaurs have been found regional.

“We do not know what occurred to this one. It passed away and got scavenged,” he said.

McCrea said B.C. has been slowly to secure previous, which can be quickly damaged by people action.

In 2005, the authorities declared it was going toward a history plan to deal with B.C.’s historic previous. Five decades later, McCrea is still holding out.

The region started a assessment plan last summer time time, B.C. Farming and Areas Reverend Bob Thomson said in a report.

“Our objective is to provide clear methods to deal with fossil websites in B.C.,” Thomson said. “We are working toward a complete structure that will handle this important source.”

For more information related to dinosaurs, visit rareresource.com.

Challenging Turtles endure Cretaceous meteorite impact

2012-01-13T20:56:00.000-08:00

New traditional places from South Dakota and Mt have created the continues to be of a turtle that live through the 65 million-year-old meteorite effect that damaged the dinosaurs. The producing research, released in the newest concern of the Publication of Vertebrate Paleontology, indicates that Boremys, a turtle that connected to a team known as the baenids (bay-een-ids) live through the extinguished occurrence unscathed. Baenids are a number of vanished stream turtles indigenous to South The u. s. declares that blossomed from somewhere around 80 thousand to 42 thousand decades ago.

The cause writer, Tyler Lyson from Yale Higher education, has been gathering turtles from the american Usa States for decades, and instantly noticed the significance of these new kinds, "This find further shows that turtles were not fazed by the meteorite that murdered the dinosaurs 65 thousand years-ago."

The success of turtles during this large extinguished occurrence seems to be odd with what we know about other bacteria. While other categories of creatures present high charges of extinguished at the Cretaceous/Paleocene (K/T) edge 65-million-years ago, this new development provides more information showing that turtles were mostly unchanged by the meteorite effect. Lyson and fellow workers discovered that if you just checked out turtles during now, you would not even observe that one of the most significant extinguished activities in Planet's historical past had took place.

The scientists retrieved the new Boremys turtle continues to be from stones in north american South Dakota and southern Mt. These mountain structures, known as the Terrible Stream and Ft Partnership, respectively, have been definitely gathered for past by paleontologists for more than 100 decades. This new research shows that even in well-searched places, new traditional developments can still be open. Co-author Dr. Wally Joyce recognized his shock with the new development, "At first I did not believe Tyler when he informed me that he had discovered Boremys in Paleocene build up."

Lyson and his co-authors believe that functions of the cover of Boremys did not help its possibilities of maintenance in the traditional history. The turtle had very slim cover bone comparative to other baenids, and they you will find unfused throughout the turtle’s everyday life. These functions likely led to its bone being existing after loss of everyday life, generating the possibilities of a whole cover being stored very low. The experts also mentioned that the functions of the cover were very just like another turtle kinds existing as well, which cause to preliminary misidentification.

With the development of this turtle, Lyson and his fellow workers can now say that at least eight kinds of baenid turtles live through the meteorite effect that murdered so many other creatures.
For more interesting topics related to archaeology, visit archaeology excavations.

Getting the dust on B.C. fossils

2012-01-13T20:47:00.000-08:00

As soon as she began burrowing into the lawful fight experienced by a physician who discovered old monitors in a B.C. playground, Vivien Lougheed realized she had came on a Jurassic-size tale.

“I did some analysis on it and discovered sacred Toledo—there’s a lot of beginner palaeontologists who are disappointed with the scenario in English The philipines,” she says.

In Sidetracked: The Have difficulty for BC’s Past, Lougheed reveals the moi, cash and scientific disciplines behind traditional tracking in B.C. and South The united states. The Knight in shining armor Henry creator will discuss her new publication Oct. 14 at the Dallas Community Collection.

Paleontological nationwide politics were a far cry from Lougheed’s past composing, including take a trip testimonies from Bolivia and a climbing guideline to Kluane Country wide Park. But Lougheed was interested.

“Amateurs discover almost everything,” she said. “The experts do not sufficient.”

One such beginner is Dr. Garnet Fraser, a physician who was tracking with a buddy when they came across a set of old monitors on a mountain walls in Kakwa Provincial Park. Several types of dinosaurs created the monitors, and they involve one unbroken set of 26 paces.

Lougheed companies her publication around Fraser’s development and his following have a problem with experts in the area.

In North america, individuals can lawfully keep or provide typical fossils. Unusual fossils are secured by the Social Residence Act, but Lougheed said that needs a palaeontologist to dimension up up the discover. There are just two functioning in B.C. right now, she said.

“Trying to keep everything just for the experts is unjust,” she said.

After studying the tale of Dr. Fraser and other individuals with less experience across South The united states, Lougheed began to recommend for a program that embraces individuals with less experience.

“If individuals with less experience are not kept as aspect of the experience, they are not going to provide anything over,” she said. “And you cannot responsibility them.”

Some palaeontologists would desire that all traditional websites be secured, she said, and they have legitimate issues.

“You might have a exceptional or essential types that does not get to the scientists,” said Lougheed.

Some considerable fossils do end up in personal selections, she included. And burrowing up a 160-million season old traditional is a gentle job that could quickly be mishandled by someone with no exercising.

Still, Lougheed said B.C. already has professional digs that get the best of both paleontological worlds—the overdue fans and the scientists at colleges and galleries.

At the McAbee website near Storage cache Stream, anyone can dig for fossils for a little fee. A website supervisor opinions every traditional before it simply actually leaves, maintaining any stand apart conclusions and delivering them to experts to analysis.

More fossils get examined that way than they do in locations like Drumheller, Alberta, she said.

“We cannot create personal locations for the experts to go and invest two several weeks or a several weeks out of the season,” she said.

At the Drumheller website known as “Dinosaur Street,” only Phd prospects can function on essential digs. That indicates some fossils may be eventually left to deteriorate between diggings, she said.

Lougheed is assured individuals in the area can discover a bargain for B.C.. She also motivates individuals with less experience to take up the fossil-hunting addiction.

For more information related to dinosaurs, visit rareresource.com.

Progression of old platform designs at Red Hill changes on scientists

2012-01-12T21:22:00.000-08:00

How did bugs get their hearing? A new research of 50 thousand year-old cricket and katydid past — wearing some of the best stored traditional a similar reading described to date— help find the progress of the a similar ear, says a new research by scientists functioning at the Nationwide Major Functionality Middle.

Insects notice with help from uncommon reading, said co-author Roy Plotnick of the Higher education of Il at Chicago, illinois. Grasshoppers have reading on their abdomens. Lacewings have reading on their wings. The reading of the tachinid fly are nestled under the face. "Insects have reading on very much every aspect of their human body except on their go appropriate," Plotnick described.

Insects have developed reading at least 17 periods in different lineages. Plotnick and co-author Dena Jackson of the Higher education of Co, Boulder are trying to decide when different bugs got their reading, and whether should may have performed a function.

Modern bugs use their reading to track in to each other people's chirps, trills and peeps. Think of the refrain of crickets, or the really like audio of cicadas. But many types can also select up appears to be beyond the variety of people reading, such as the high-pitched sonar of night-hunting hits. Crickets, moths and other traveling by air bugs have ultrasound-sensitive reading and can notice hits returning, going or swerving in midflight to prevent being enjoyed.

Insects that developed such supersensitive reading would have had a essential success benefits, experts say.

"The big evolutionary lead to for the overall look of reading in many bugs is imagined to be the overall look of hits," Plotnick said. "Prior to the progress of hits we would anticipate finding reading in relatively few bugs, but after that we should see reading in more a similar categories," he described.

Did a similar reading get an update when hits came to be? Before this research the traditional proof for a similar reading was too badly stored or scantily described to know for sure.

To discover out, Plotnick and Jackson transformed to extremely well-preserved past from a sequence of pond build up in Wy, Ut and Co known as the Natural Stream Structure, where some of the first hits are discovered.

Roughly forty five thousand decades ago, fine-grained deposit protected and hidden the creatures that resided there and maintained to retain them in beautiful details. "You can see every small function down to the blood vessels in their wings and the hair on their feet," said Jackson, who has been understanding Natural Stream past for more than 15 decades.

For more information related to dinosaurs, visit rareresource.com.

Development of old base styles at Red Mountain turns on scientists

2012-01-12T21:19:00.000-08:00

In a sea of sand hills stretch to the skyline, a old the dimension a Doberman strode through wet mud that squished between its talon-tipped toes.

Where the being was going and why has been missing permanently down the well of geologic time, but its dirty base styles goal on in a prevent of sandstone 25 distance from the Remove.

Officials at Red Mountain Canyn Nationwide Preservation Place have verified the invention of old base styles and other monitors installed down approximately 190 thousand decades ago.

The base styles were found in starting October by some frequent readers to Red Mountain who also provide at the conservation area.

Researchers verified the discover during a area vacation to the website just before the begin of an worldwide paleontology convention presented in Las Nevada starting this 30 days.

At least one of the three-toed styles is ringed with what looks like ripples triggered when the dog's base filled down in the mud.

"They phase down, the ripples go out, and it continues to be there for 180 or 190 thousand decades. It's mind-boggling," said Tim Wakefield, submitted supervisor for the U.S. Institution of Area Administration at Red Mountain.

It is the first discovery of its type within the 195,000-acre conservation area. Professionals are contacting it the first set of old monitors to be officially recorded anywhere in The state of nevada.

A primitive key for now

Brent Breithaupt is a localised paleontologist for the BLM and aspect of the number of experts that verified the invention.

At first impact, he said, the monitors appear to come from a two-footed, meat-eating old that was probably no more than about 3 toes long from nasal area to trail.

But Breithaupt advised that it is "very premature" to say almost anything with guarantee about the being.

"We know we have monitors there. Right now, we're at the very starting of our statement," he said. "Every monitor website has a tale to tell. Trying to choose what that tale is -- that's what's interesting about being a specialist."

The BLM, which functions Red Mountain Canyn, isn't publishing the place of the fossilized base styles. The website will be kept under systems until it has been recorded and experts choose how best to secure it.

The base styles were found in a coating of Aztec sandstone, the same form of good ole' and roll in which fossilized old monitors have been found in Ut and Az.

All authorities will say is that the website is distant and challenging to arrive at. Wakefield described it as a hard, two-hour increase from one of the vehicle places in what he known as Red Rock's "core area," which generally features all the land noticeable from the guest middle.

"We're not trying to be discreet. We just want individuals to be sincere of it like they already are with our social places for the most aspect," he said. "If we don't do this right, we run the chance of dropping something we can never get again."

The bureau programs to publish some non permanent shows about the invention at the Red Mountain guest middle within the next few several weeks.

A more specific display, such as if you do not of the fossilized base styles, could be up by starting next season, when authorities want to carry an start home so readers can discuss immediately to experts about the discover.

Wakefield said it probably will take at least a season for technological function to be accomplished and a choice to be created about how -- or whether -- to immediate readers to the monitors themselves.

"We are so troubled to reveal this with the community," he said. "This is so interesting."

Documenting the discovery

Breithaupt and organization soaked many monitors in a place stretch approximately a one fourth of kilometer.

In inclusion to old styles, they found what seems to be a range of monitors from a examine or scorpion about the same dimension as the ones that walk places these days.

The arthropod monitors are from the same period frame as the other fossilized styles, Breithaupt said. "They were scurrying around with the dinosaurs."

After using a quick market research of the website, the paleontologists broke three-dimensional images of the monitors by using an incredibly high-resolution digicam that can catch information down to a 10th of a mm.

The images are good enough to generate 3-D if you do not of the monitors without having to take actual moldings that can harm the good ole' and roll.

"It's the most non-invasive way to make a thrown of a traditional," Breithaupt said.

Local paleontologist Josh Bonde hasn't seen the monitors yet, but he knows a little something about looking through existing day Lower The state of nevada for records from the age of dinosaurs.

His function in Area of Fireplace has assisted to recognize past of dinosaurs, species of fish, turtles and crocodiles from the Cretaceous interval, approximately 100 thousand decades ago.

He said discovering monitors from the starting Jurassic is "actually really cool" because websites from then frame are unusual in this place.

"Those stones are few and far between," Bonde said.

What they could show us

Eventually, specific evaluation of the base styles could expose the dimension and form of old that created them and the situation of the ground in which they were gradually left. They could provide signs to the dog's conduct.

"We'll be able to say something about the speed and the speed," Breithaupt said.

It is thoughtful function that features equivalent methods of statement and decryption.

"We never discover a old deceased in its monitors," Breithaupt said. "It's type of like paleontological 'forensics'. These are the greatest freezing situations."

And this situation is about as freezing as they come. Since the monitors were gradually left in the wet mud, the sun has increased and set over Lower The state of nevada approximately 70 million times.

In the starting Jurassic, the areas were still clumped together, and the land huge that would become South The united states was better the equator. The state of nevada was aspect of a large leave again then that creates the present-day Mojave look luxurious by assessment.

To convert base styles in mud sand hills into past in sandstone needs water and demand and a lot of success. For those monitors to lie hidden for hundreds of large numbers decades and then be put and revealed by loss at just the best to be identified by people is about the least likely opportunity experience possible.

"It's best not to think about it," Bonde said.

Breithaupt said the monitors probably have been revealed on the exterior, holding out to be found, for centuries. But he is not amazed it took until now to discover them, even in a place as fast paced as Red Mountain.

Fossilized monitors often get neglected in places not known for proof of dinosaurs. Once concept gets out about the monitors in Red Mountain, Breithaupt desires it to cause to more developments in Red Mountain Canyn and elsewhere in The state of nevada.

"People will begin considering dinosaurs being there. They will get a look for picture in their thoughts," he said. "This may be the tip of the iceberg with regards to what may be stored there."

For more information related to dinosaurs, visit rareresource.com.

First-ever Mammalian traditional discovered in the Cenozoic build up of the Lunpola Container, South Tibet

2012-01-11T21:47:00.000-08:00

Dr. Deng Tao, Company of Vertebrate Paleontology and Paleoanthropology (IVPP), China School of Sciences, and his analysis group, discovered a rhinocerotid traditional in the higher aspect of the Dingqing Structure at the Lunbori location in Baingoin Nation during an comprehensive and specific research of the stratigraphy and a market research for vertebrate past last year and 2010, which is the first mammalian traditional discovered in Cenozoic build up of the Lunpola Container, South Tibet, as revealed in the publication of China Scientific disciplines Message (No.2-3:261-269) in Earnings 2012.

The Lunpola Container is on the lower and northern factors of the edge between Baingoin Nation and the Shuanghu Unique Section in northern Tibet. The age of Cenozoic build up in the Lunpola Container in northern Tibet has been problematic for many decades, generally because of a insufficient past with precise date relevance. Rhinocerotid past are essential normal past with demanding date relevance for the Cenozoic, and are essential symptoms of the environments populated by mammalian faunas.

“The inside condyle of the distal trochlea of the humerus sample from Lunbori progressively agreements from medially to back and forth. The edge of the inside exterior of the inside condyle is not popular, the well-developed inside epicondyle clearly expands posteriorly, and is separated from the articular element of the inside condyle by a groove”, said DENG Tao, cause writer of the research, “These all are common feature for the Household Rhinocerotidae, and it must be a rhinocerotid traditional.”

The specific findings and evaluations present that its inside condyle is large at the end and small at the top, the inside guarantee structures fossa is relatively short, and the inside guarantee structures tubercle is very vulnerable. The inside aspect of the higher edge of the inside condyle easily joins to the bony exterior above, but does not have a clear edge between them. All of these features are similar with those of Plesiaceratherium. These evaluations suggest that the Lunbori sample is nearest Plesiaceratherium gracile in the Shanwang Wildlife from Linqu, Shandong Region, in dimension and morphology.

Plesiaceratherium has formerly been discovered in the overdue Beginning Miocene build up of lower The far east and American The european union. Radiometric relationship for the Shanwang Container in Linqu Nation, Shandong Region indicates that Plesiaceratherium resided between 18–16 Ma. Thus, the higher aspect of the Dingqing Structure keeping the traditional Plesiaceratherium was placed during the overdue Beginning Miocene, and the complete Dingqing Structure involved Oligocene- Miocene build up.

The crops form of the Dingqing Structure was similar to that of the Shanwang Wildlife and Plesiaceratherium has been deduced to reside in subtropical and heated moderate jungles, choosing a heated and moist environment. The connections and improvements according to contemporary down crops directory areas in the Himalayas and the Beginning Miocene international weather circumstances conditions indicate that the best level in the Lunpola Container at the time of the deposit of the Dingqing Structure could not have overtaken 3170 m a.s.l. The environment specifications of rhinoceroses through a paleo-temperature change for the Beginning Miocene indicate that the most affordable paleo-elevation for Plesiaceratherium is near to 3000 m a.s.l.

This function was reinforced by the Understanding Advancement Plan of the China School of Sciences, the Nationwide Primary Research Plan of The far east, and the Nationwide Normal Scientific disciplines Groundwork of The far east.

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Triassic types of fish traditional discovered in Southern Yunnan Region, China

2012-01-11T21:45:00.000-08:00

The Ginglymodi are a number of ray-finned within a that create up one of three significant subdivisions of the infraclass Neopterygii. Extant ginglymodians are showed by gars, which enjoy water conditions of South and Middle The united states and Cuba.

Drs. XU Guanghui and WU Feixiang, Company of Vertebrate Paleontology and Paleoanthropology (IVPP), China School of Sciences, revealed the development of well-preserved past of a new ginglymodian, Kyphosichthys grandei gen. et sp. nov., from the Center Triassic (Anisian) sea build up (Guanling Formation) in Luoping, eastern Yunnan Region, The far east.

The development records the first known traditional history of extremely deep-bodied ginglymodians, including new details on the beginning morphological variety of this team.

The new ginglymodian types is deep-bodied with a clearly curved problem between go and dorsal fin, and was discovered in build up consisting by slim calcium mudstone interlaid with black shale, siliceous concretion, and zebra limestone of obvious sea beginning.

The lithofacies of this traditional website indicate a foundation edge or foundation edge mountain atmosphere.

Along with this new types of fish is a taxonomically vibrant traditional system, such as vegetation, invertebrates, sea animals, and other types of within a.

The research of sensible morphology of extant deep-bodied within a indicate that Kyphosichthys is not a quick swimmer but has a excellent efficiency in accurate moving, which represents a morphological version to structurally complicated conditions (e.g. solid macrophyte furniture, difficult places, or barrier reefs), which varies from the other associates of this team.

“The development of the new deep-bodied ginglymodian indicates that the first atmosphere variation of the Ginglymodi took place at least in the Center Triassic”, said XU Guanghui, affiliate lecturer of the IVPP and first writer of the research, “Its incident contributes considerably to the planet variety of the already known vertebrate wildlife from the Center Triassic sea atmosphere of the eastern Yangtze Sea, which once continual taxonomically and functionally different sea animals and other within a.”

The first known neopterygians are discovered in the Early Triassic. Increased variation of the Neopterygii took place in the Center Triassic, and the Triassic is a interval of particular attention to the research of the neopterygian progress.

A cladistic evaluation was done to determine the phylogenetic interactions of the new types of fish taxon Kyphosichthys with other taxa of the Neopterygii.

The evaluation outcome can handle the speculation that the Ginglymodi are more carefully relevant to the Halecomorphi than to the Teleostei.

These phylogenetic interactions recognize with Grandes in the resurrection of the phrase Holostei to involve the Ginglymodi and Halecomorphi within the crown-group Neopterygii. Kyphosichthys was determined as a ginglymodian in the Holostei.

The evaluation also reveals that a very deeply and shorter types of fish figure has separately developed at least three periods in the stem-group neopterygians, ginglymodians, and basal teleosts within the cheaper neopterygians of the Triassic, showed respectively by Felberia, Kyphosichthys, and Dapedium.

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Cbaryonyx old skeleton

2012-01-10T21:46:00.000-08:00

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Old Art gallery In Bid To Carry Unusual Triceratops Skeletal system To Britain

2012-01-10T21:31:00.000-08:00

The exceptional skeleton is the residence of a personal enthusiast in The european union and is the celebrity fascination of a purchase of dinosaur and other past at the retail in London. It is predicted to bring around 500,000 Dollars but may go much greater as it has drawn all over the community interest.

Jackie Ridley, the Manager of the Old Art gallery said the Triceratops is basically stunning. “It would be really amazing if we could bring the dinosaur to The u. s. kingdom and in particular The Old Art gallery in Dorchester”

She ongoing, “ Not only is it the only one of its type in The european union, but usually The u. s. kingdom does not have any comprehensive pumpkin heads or scarecrows of this quality. Most of the excavated dinosaurs in The u. s. kingdom are fragmentary in assessment. Triceratops was not indigenous to The u. s. kingdom but it would be excellent for individuals to see such an essential skeleton in the U.K”

The 7.5 metre (24 base long) Triceratops, is the only one of its type in The european union. The skeleton, Triceratops horridus a three-horned large dinosaur was discovered in 2004 by rancher in the Usa Declares in South Dakota. The traditional skeleton is 70 % comprehensive and is attached as a comprehensive monster with the losing bone thrown in material from other types. It’s it all most comprehensive skeleton of Triceratops yet discovered and is only the second almost comprehensive dinosaur skeleton to go on the market by community retail.

The last traditional skeleton to be marketed by retail, a Tyrannosaurus rex, was marketed in New You are able to by Sotheby’s in 1997. It was marketed to a Chicago, illinois Art gallery for $8 thousand.

Unlike T rex that was a carnivore, Triceratops was a herbivore or veggie, however with its large frilled brain and three extensive horns it was a solid creature and in any fight with T rex could more than carry its own. The Triceratops skeleton weighs over 200 weight or 440 lbs and times to the overdue cretaceous interval over 65 thousand decades ago.

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Old foot prints discovered in Beijing

2012-01-09T21:46:00.000-08:00

Paleontologists say array or so fossilized foot prints in a China suburb are those of dinosaurs.

The foot prints, uncovered in a geological playground in Yanqing nation, are the first dinosaur remnants the town has discovered, according to Zhang Jianping, specialist at the The far east School of Geosciences.

They were eventually left by dinosaurs that resided some 140 to 150 thousand decades ago in the overdue Jurassic interval, said Zhang.

A number of experts from Zhang's higher education first discovered the foot prints in September 2011 in the Guihuamu Geological Park, which is known for its attention of scared historic timber.

In one area where most of the foot prints are powerful, the paleontologists mentioned array or so foot prints as well as seven to eight collections established by straight actions.

Thyreophoras, theropods, ornithopods, and probably sauropods are considered to have eventually left the foot prints. The development will advantage the research of China's dinosaur types at overdue Jurassic and beginning Cretaceous times, Zhang said.

"It's initially The far east has discovered thyreophora, ornithopod, and sauropod foot prints of that interval, which provides us with more understanding on how such types propagate across The far east," said Zhang.

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2011 was Texas' driest season on record

2012-01-09T21:44:00.000-08:00

The National Climate Services says 2011 was Texas' driest season on history as well as its second coolest.

The organization said Exclusive the normal rain for the drought-stricken state last season was 14.88 in.. The previous driest regular total was in 1917 with 14.99 in..

The weather assistance says 2011's conditions was 67.2 levels. Texas' hottest season on history was in 1921 with an conditions of 67.5 levels.

Historic Arizona famine could leave tough impact
Depleted Arizona ponds present spider areas, graves

Last season Arizona experienced its most severe single-year famine, its most significant farming failures and the coolest summer in U.S. history. From May through May, Arizona averaged 86.8 levels, defeating out Oklahoma's 85.2 levels in 1934.

The current famine started in fall 2010. Forecasters say it is expected to get on at least through May.

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La Excavación en Proyecto Dino

2012-01-05T19:26:00.000-08:00

Las distintas campañas al lugar de trabajo fueron variadas y cada una tuvo sus particularidades, la convivencia de los distintos grupos fue enriquecedora y permitió entablar nuevas amistades con gente de distintos lugares del país y del extranjero.

Desde la primera campaña realizada con pocos recursos, usted podrá observar como fue evolucionando para llegar a la actualidad con mejoras sustanciales. Durante 2003 y 2004 la infraestructura y el área de la excavación fueron aumentando. Los trabajos de campo y la vida en el campamento son parte de una misma cosa, que no pueden separarse a diferencia de cualquier trabajo en la ciudad.

El hallazgo de restos fósiles de dinosaurios comienza con la exploración en rocas de la Era Mesozoica, en Lago Barreales corresponden al período Cretácico y tienen una antigüedad de 90 millones de años. Una vez halladas las primeras evidencias, se procede a limpiar la superficie y delimitar los bordes del fósil. Posteriormente, se excava a su alrededor hasta formar un hongo. De esta manera, la roca hace de contención parcial del fósil.

Luego se construye el denominado Bochón, que se emplea para facilitar el traslado de los fósiles hacia el laboratorio, y evitar que se quiebren. El Bochón se realiza cubriendo el fósil con papel húmedo, trapos embebidos en yeso y refuerzo de hierros que se cubren nuevamente con yeso. Posteriormente, se procede a excavar profundizando los laterales del Bochón, de esta manera, se construye una especie de hongo el cual luego se corta en su base y se da vuelta para su transporte. El transporte del bochón es otro problema para el paleontólogo, porque puede pesar desde pocos kilos hasta varias toneladas. En el laboratorio, se procede a la limpieza más minuciosa del fósil, tratándolo de separar de la roca. Este trabajo se realiza con pequeñas herramientas, como tornos neumáticos que permiten realizar el trabaj o con mayor precisión. Una vez limpio este material puede comenzar a ser estudiado, y así se determinará a que especie pertenece. Si el fósil no es conocido, hay que asignarle un nombre al mismo y comunicarle a toda la comunidad científica paleontológica sobre el nuevo hallazgo.

Este proceso lleva mucho tiempo de dedicación, paciencia y aprendizaje. La materia prima, el fósil, se obtiene de la roca y para rescatar este patrimonio de la Nación se debe sortear toda una serie de inconvenientes que van desde la falta de fondos hasta las inclemencias del tiempo. Se debe además tener mucho respeto por el medio ambiente. Este trabajo conlleva el esfuerzo de paleontólogos y técnicos, que dedican su vida entera al estudio del pasado del planeta en que vivimos.

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New Rare Dinosaur Bones Found?

2012-01-05T19:25:00.001-08:00

I found these next to a playground in Raleigh, NC last week. They look like fossilized dinosaur bones that have been petrified with quartz crystals. Fossils or just rocks? I wish I had a clue on the subject…

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Los dinosaurios sauropodos

2012-01-04T21:48:00.000-08:00

Los dinosaurios saurópodos son los animales terrestres más grandes que han existido. Sus restos fósiles han sido hallados en casi todos los continentes. Aparecieron a fines del Triásico, hace unos 203 millones de años, y desaparecieron a fines del Cretácico, hace 65 millones. Los saurópodos se caracterizaron por su largo cuello y cola, cabeza pequeña, dentición herbívora y extremidades robustas para soportar un enorme peso.

En América del Sur sus huesos fósiles son abundantes, principalmente en Argentina y Brasil. Estos dinosaurios fueron los herbívoros dominantes en los ecosistemas del Cretácico y desarrollaron notables adaptaciones. Algunos lograron tamaños gigantescos, tal como Argentinosaurus y Puertasaurus, superando los 30 m de largo y las 80 toneladas de peso. Otros tuvieron largas espinas, como Amargasaurus, e incluso algunos reducieron su cuello, como Brachytrachelopan. Finalmente, algunas especies como Saltasaurus y Mendozasaurus, poseían grandes placas óseas en su piel.
En los últimos años, algunos descubrimientos han brindado información sobre aspectos biológicos interesantes. El hallazgo de huevos y nidos en Auca Mahuevo (Neuquén) indica que algunos titanosaurios tenían hábitos gregarios. Así mismo, tanto el estudio de las huellas fósiles de Neuquén (El Chocón) y Mendoza (Malargue), como el análisis de los yacimientos de huesos confirman que algunos de estos herbívoros vivían o se desplazaban en manadas. En Argentina, el hallazgo de esqueletos parcialmente completos, como el del gigantesco Futalognkosaurus (Lago Barreales, Neuquén) y la aplicación de detallados estudios de campo han abierto nuevas perspectivas para conocer mejor a estos dinosaurios gigantes.

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Evolution and phylogeny of titanosaur sauropods

2012-01-04T21:46:00.000-08:00

The fragmentary preservation of most titanosaurs, and the use of different criteria produce controversial aspects in the cladistic analyses. For example, Titanosauria, as a taxon that includes different titanosaur groups was proposed by Bonaparte and Coria (1993), on the paper where described the giant Argentinosaurus, maybe the most large sauropod known. Salgado et al., (1997a) defined Titanosauria as “the most recent common ancestor of Andesaurus delgadoi and Titanosauridae, and all of its descendants”. Later, this node-based clade, was re-defined using different criteria.

First, Sereno (1998) proposed to characterize Titanosauria through a stem-based definition as “all somphospondyls closer to Saltasaurus than to Euhelopus”. Second, Salgado (2003a) followed the definition of Sereno. Third, Wilson and Upchurch (2003) adopted the node-based definition originally proposed by Salgado et al. (1997a). This changing panorama has important consequences for the study of basal titanosaurs.

For instance, if we follow the original definition, Phuwiangosaurus, Ligabuesaurus, Malarguesaurus and Chubutisaurus place outside Titanosauria. In a second alternative, following the definition of Sereno (1998), some of them could be considered as titanosaurs, such as emphasize González Riga et al. (2009a). In this context, a carefully revision of the phylogenetic definitions of the clades and named used during the last decade is necessary.

The phylogenetic study of titanosaur sauropods is in its first stages. For example, the taxonomic description of the most South American titanosaur taxa do not include a cladistic analysis or, at least, a preliminary phylogenetic study. For example, from 27 titanosaur genus known in South America, only 6 (i.e. Mendozasaurus, Rinconsaurus, Ligabuesaurus, Muyelensaurus, Futalongkosaurus and Malarguesaurus) have cladistic analyses in their description (González Riga, 2003; Calvo and González Riga 2003; Bonaparte et al., 2006; Calvo et al., 2007b; Calvo et al., 2007a; González Riga et al., 2009a).

This indicates that the most papers comprise topics of diagnosis, description and comparison, without further considerations.
Most of the cladistic studies of sauropods include few titanosaur taxa. However, in the last year, the analyses of Salgado et al. (1997a), Sanz et al., (1999), Curry Rogers and Foster (2001), Smith et al., (2001); Wilson (2002), González Riga (2003), Calvo and González Riga (2003), Upchurch et al., (2004), Curry Rogers (2005), Bonaparte et al., (2006), Calvo et al. (2007a; 2007b), and González Riga et al. (2009a) increased the number of titanosaur genus analyzed and show a progresive inclusion of characters usefull for titanosaurs.

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Two New Dinosaurs from Africa

2012-01-03T21:29:00.000-08:00

One dinosaur species was an evolutionary offshoot with a strange-shaped head and 600 teeth. The other was more primitive, remaining almost unchanged for 40 million years and surviving long after supposedly more evolved relatives went extinct in other parts of the world.

Two newly discovered species of large, long-necked, plant-eating dinosaurs from Niger illustrate the widely differing paces of evolution.

“There seems to be no preference in rate [of evolution],” says University of Chicago paleontologist Paul Sereno, lead author of an article in Friday’s Science describing the new dinosaurs. “I don’t know if we could have predicted that. We are the first to really show it.”

The Unchanging Dinosaur

In the steady and unchanging crowd is Jobaria tiguidensis, a 20-ton, 70-foot-long cousin of Apatosaurus (a genus better known to many as Brontosaurus), Diplodocus and other sauropod dinosaurs. (Jobar is a mythical creature among North African nomads; tiguidensis refers to cliffs near the discovery site.)

What’s most intriguing about Jobaria is not its features, but that it appeared to be living in the wrong era. The two Jobaria specimens excavated by Sereno’s team, one adult and a smaller juvenile, date to about 135 million years ago, or after Apatosaurus and Diplodocus, which roamed in North America, had already died out.

But in appearances, Jobaria is more primitive than its earlier North American cousins. Its neck is relatively short, with only 12 neck bones, vs. 15 or more in more evolved sauropods, and it has spoon-shaped teeth, like the early sauropods, rather than the pencil-shaped teeth of later versions.

“It looks like it comes out of the Jurassic,” Sereno says, referring to the period from 200 million to 135 million years ago. “It’s sort of hanging on in Africa and doing quite well.”

Different Teeth for Different Food

Spoon-shaped teeth may have been more suited to dining on conifers, while pencil-shaped teeth are believed to be better fern munchers, possibly reflecting a shift in vegetation. Longer-necked sauropods have greater reach.

At this time, the southern supercontinent of Gondwana was breaking up into Africa and South America, which may have provided Jobaria an isolated ecological niche. Perhaps African forests were richer in conifers than those elsewhere.

Or, “It could just be chance,” Sereno says. “I don’t know we have any reason to believe Africa was much different from any other place.”

Long-lived species are not a new discovery. Coelacanths, for example, have been swimming the oceans for 400 million years, and horseshoe crabs have been around for even longer.

Dino With Darth Vader Head

Sereno and his co-workers dub the second sauropod they found Nigersaurus taquetti, a small, 50-foot-long sauropod that lived about 110 million years ago.

And a toothy dinosaur, too. “There are 140 teeth exposed when it smiles,” Sereno says. And stacked behind each pencil-shaped tooth are up to seven replacements, ready to pop down when the tooth in front falls out. (Think of a stack of Dixie cups.)

In all, Nigersaurus had more than 600 teeth, giving the skull an angular shape unlike other sauropods. “It’s either Darth Vader or a Hoover vacuum cleaner,” Sereno says. “It is the most bizarre sauropod that has been found in years.”

Unlike the persisting shape of Jobaria, Nigersaurus evolved its unusual appearance relatively quickly, in a few million years.

Ecological conditions probably are what causes some dinosaurs to transform radically in appearance in a short period of time, while others persist almost unchanged for millions of years.

Same as the Old One

Evolution did not halt within Jobaria, and over millions of years mutations shifted its DNA.

“That dinosaur was almost certainly very well adapted to its environment,” says Blair Hedges, an evolutionary biologist at Penn State University. Thus, natural selection just kept selecting the new one that looked like the old one, even though details in its genetic code changed.

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Titanosaur Fossils Found in Madagascar

2012-01-03T21:25:00.000-08:00

Paleontologists have unearthed two exceedingly rare skulls of a titanosaur, finally putting a face on one of the world's most common, yet least understood dinosaurs.

The skulls' discoveries in Madagascar also fuel the debate over how dinosaurs spread around the world and when the Earth's land masses split into today's arrangement of continents.

One of the fossils — a juvenile — is 90 percent complete, including the skull, making it perhaps the best example of a titanosaur ever found. The second specimen is an adult skull only.

The fossils, described in the current issue of the journal Nature, are 65 million to 70 million years old. Most titanosaurs, like other plant-eating behemoths, lived up to 140 million years ago.

The relative youth of these specimens suggests that titanosaurs spanned several periods of dinosaur evolution until all dinosaurs went extinct at the end of the Cretaceous Period.

"These animals were extremely successful, the dominant plant-eaters in some parts of the world," said Scott Sampson, paleontology curator at the Utah Museum of Natural History. Sampson participated in the Madagascar dig, but did not contribute to the study.

"By figuring out relationships between titanosaurs around the world, we can understand the breakup of the continents," Sampson said. "That helps to make this a great discovery."

Titanosaur Bones Found on Six Continents

The first titanosaur was found in 1842. Since then, their bones have been located on every continent except Antarctica.

Titanosaurs are not one species, but a group of at least 30 herbivores of different sizes. The largest is Argentinosaurus. Found in Patagonia, it was 90 feet (27 meters) long and weighed 90 tons, making it the largest creature to ever walk the Earth.

Titanosaurs belonged to a larger category of lightly armored dinosaurs known as sauropods — prototypical plant-eaters with long necks and tails, huge bodies and pile-driver legs. Most sauropods lived during the Jurassic Era, dying out more than 100 million years ago. But titanosaurs persisted.

Titanosaurs are poorly understood. That's because their heads were small and delicate, easily snapping off after death.

"We've never had a complete picture of a titanosaur before," said the study's lead author, Kristina Curry Rogers of the Science Museum of Minnesota in St. Paul.

"This tells us what they looked like," she said, "from the light head hanging on the end of a long neck to the tip of its tail."

Species Had Strong Sense of Smell

The Madagascar specimens probably grew to 50 feet (15 meters). Their scientific name is Rapetosaurus krausei. Rapetosaurus reflects the role of Rapeto, a mythical giant, in the folklore of Madagascar. Krausei honors paleontologist David Krause.

The titanosaur skulls have distinctive features.

The heads are less than 2 feet (60 cms) long with horse-like jaws. Cylindrical teeth resembling sharp pencils were used to strip leaves off branches.

The nostrils are located high on the snout. Large nerve channels suggest it smelled keenly.

High on the face sit two large gaps in the thin skull. They resemble huge eye sockets, but scientists believe they worked like sinuses.

The fragmented skulls were chipped from an ancient river channel in northwest Madagascar beginning in 1995. They were reassembled in the laboratory.

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Bones of giant camel dating back 100,000 years discovered in Syrian desert

2012-01-02T21:48:00.000-08:00

The bones of a giant camel dating back 100,000 years were recently unearthed in the Syrian desert, a government newspaper has reported.

The bones were discovered by a joint Syrian-Swiss archaeological team at the site of al-Hemel in the Palmyra region about 250 kilometers northwest of Damascus, the state-run Tishrin daily reported Saturday.

The discovery was the first of its kind and revealed that the Syrian desert "is the first origin of the camel," Bassam Jammous, director general of the Antiquities and Museum Department in Syria, told the newspaper.

He said the camel is double the size of the modern-day camel and "poses a revolution in the world of archaeological discoveries."

Officials with the Swiss archaeology team could not be immediately reached for comment Sunday.

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Bones found at rabbi's tomb on Mount Meron ignite uproar

2012-01-02T21:46:00.000-08:00

It was not immediately clear why the guard, Fitousi, sat huddled up next to a space heater, its cord plugged into a socket some distance away, guarding a seemingly empty piece of ground near the tomb of Rabbi Shimon Bar Yohai on Mount Meron.

Even without the heater, the piece of ground has been red-hot for a week; like everything having to do with the sacred tomb, it is the source of unending conflict.

Two pits, apparently tombs, uncovered during restoration work at the site, have raised a furor among the ultra-Orthodox. The storm was fed by rumors that the bones of Bar Yohai himself had been uncovered, and that a truck-driver who had agreed to remove the earth of the desecrated tombs had flipped his truck.

It all started with the decision to build a new path to lead to the women's section, which would prevent eye-contact between men and women and be more comfortable than the previous one.

The decision to renovate was made by a committee consisting of four representatives of ultra-Orthodox groups, who have been managing the sacred site for several years. The committee is now headed by a representative of the state, Rabbi Shmuel Rabinovich, the rabbi in charge of Israel's Jewish holy places.

His appointment garnered such a backlash that Rabinovich had to be given bodyguards.

The paving of the path was apparently intended to calm things, but the discovery of the bones had the opposite effect at the site, which, with an estimated million visitors per year, is the second most popular Jewish pilgrimage site in Israel after the Western Wall.

Rabinovich said work stopped immediately with the discovery of the bones.

"We will not act until we receive directives from the experts," he said.

However, last Wednesday night, a group of ultra-Orthodox came to the site to protest that the works were still underway.

The tomb that was uncovered is believed to consist of a niche in which bones had been laid, although final determination has not been made.

Following the discovery, an ultra-Orthodox High Court issued a warning that members of the priestly class (who are not permitted in cemeteries) should not come to the site.

Yeshiva students at the tomb Wednesday said the truck-driver who had removed the earth from the site, over the requests of protesters, overturned a few minutes later near Moshav Safsufa. The driver, who would not give his name, said on an ultra-Orthodox internet news site that he had indeed overturned.

"I hope it isn't because of the bones. It's scary. I feel bad. I won't do that work any more," he said.

Conflicts have been erupting over control of the tomb for 200 years, and the latest flap comes amid struggles over the division of space at the site. Most of the area, where a majority of the charity boxes are, is under Sephardic control. State Comptroller Micha Lindenstrauss, who is to visit the tomb in the coming days, has issued a harsh critique of the site's management.

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How to Find Dinosaur Bones

2012-01-01T20:58:00.000-08:00

Have you ever wished to display beautiful fossils in your home? They're not as hard to find as you think. With these tips, anyone can find a neat specimen. They make great conversation pieces. Happy hunting!

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When dinosaurs roamed the earth - especially Sunderland

2012-01-01T20:55:00.000-08:00

At least one sensible iguanodon may have paid a call on Wearside 130 million years ago.

They are billing it as a mystery but if I were an iguanodon I would head for Sunderland like a shot.

The city has lovely beaches nearby, fine stretches of river not far up the Wear and lots of greenery reaching right into its heart.

There's also the Stadium of Light, a fab winter gardens complex and three very lively women MPs. Stir in the recently-retired Chris Mullin and you have an excellent place to live, work, raise a family – or just be an iguanodon.

Why the dinosaur thing? For this reason. A pensioner in Sunderland was grubbing out some tree roots in his garden when he found this rum-looking bone. He did the right thing and took it to the City Museum where they identified it as a dinosaur's vertebra.

The British Museum has had a look since and say that they are right; and now all the mystery stuff begins. The rocks underlying Sunderland are much too old to have contained dinosaur relics, and there is little evidence - actually none – of Iguanodons venturing this far north.

The nearest they got was some 300 miles south, in East Sussex and that part of the world, according to Sylvia Humphrey, keeper of geology at Tyne and Wear archives. She says:

It's really quite a puzzle as to how the bone got there. Dinosaur bones are younger than the rocks of this area, as this region is on the Permian strata, which is 250 million years old. The Iguanodons from Sussex lived 120-105 million years later.

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New Early Cretaceous Dinosaur Tracks from Southwestern Arkansas

2011-12-30T21:50:00.000-08:00

Earlier this summer some new tracks, most notably sauropods and theropods, were found in southwestern Arkansas, in the same gypsum quarry where other tracks were located in the 1980's. Back then, Jeff Pittman had been doing some work at the quarry and often was displeased with the potholes he had to drive across every day. In late 1983 he and Dave Gillette confirmed that the "potholes" were actually thousands of sauropod tracks. The tracks were destroyed the next year. An account of that story can be found here.

The large theropod tracks at the Arkansas site look very similar to a new track series near Moab near the base of Ruby Ranch Member of Cedar Mountain Formation (picture right). This site is currently being developed into a protected interpreted trail by the BLM. Stay tuned for more information on this site as it becomes available. The site is being worked on by Brent Breithaupt (BLM regional paleontologist), Neffra Matthews (BLM), and Martin Lockley (CU Denver - retired). It should prove to be a very interesting site once it is described. Work is planned to compare this site to the Arkansas site.

The story below is the report from the University of Arkansas, my alma mater, who worked most recently on the Arkansas tracks. I was not involved in the work at this site. If you have any specific questions please direct them to Steve Boss.

For more information related to dinosaurs, visit rareresource.com.

Palentologist Job openings: internships, summer field work and even a few "real" jobs

2011-12-30T21:40:00.000-08:00

For all those students and recent graduates who are going to be looking for work this summer, now is the time to start paying attention (there are even a few "real" jobs showing up). Jobs and internships have started to be advertised and are often popping up until around February/March, so keep your eyes peeled. Check the SVP jobs page for updates as well.

Here are a few that are currently open:

2012 GeoCorp Positions (applications due by February 1, 2012) -

Badlands National Park (Interior, SD): Field Paleontologist
Badlands National Park (Interior, SD): Quarry Paleontologist
Dinosaur National Monument (Jensen, UT): Field Paleontologist (2 Positions)
Dinosaur National Monument (Jensen, UT): Information Technology / Paleontologist
Great Basin National Park (Baker, NV): Field Paleontologist (2 Positions)
Bryce Canyon National Park (Bryce Canyon, UT): Field Paleontologist / Geomorphologist / Geologist
Wind Cave National Park (Hot Springs, SD): Field Paleontologist / Preparator / Curator
John Day Fossil Beds National Monument (Kimberly, OR): Geologist / Paleontologist
John Day Fossil Beds National Monument (Kimberly, OR): Geologist / Paleontologist [Guest Scientist] *
Grand Canyon National Park (South Rim, AZ): Paleontologist
Denali National Park and Preserve (AK): Paleontologist / GIS Technician (2 positions)
Florissant Fossil Beds National Monument (Florissant, CO): Paleontology / Museum Intern (2 Positions)
Florissant Fossil Beds National Monument (Florissant, CO): Paleontology Intern [Diversity Internship] **
Guadalupe Mountains National Park (Salt Flat, TX): Paleontology Technician
Fossil Butte National Monument (Kemmerer, WY): Public Education Geology / Paleontology (2 Positions)
Fossil Butte National Monument (Kemmerer, WY): Paleontology Museum Technician [Diversity Internship] **
White Sands National Monument (Alamogordo, NM): Field Paleontologist [Diversity Internship] **

Petrified Forest National Park
Petrified Forest National Park in northeastern Arizona currently has a position open for a GS-7 Physical Science Technician. This is a full-time seasonal position that will start in May of 2012 and continuing through August of 2012 (dates are flexible for students). This position will be the lead for a field based program working in exposures of the Upper Triassic Chinle Formation, including intensive prospecting as well as excavation of vertebrate fossils from existing quarries. As the lead this person will oversee all aspects of field work including daily supervision of student interns. This position will work closely with the Park Paleontologist to successfully carryout and document this work. Interested applicants should have experience in the collection of vertebrate fossils, especially successful construction and removal of field jackets as well as the willingness/ability to supervise this type of work. This is a U. S. federal government position open to all U.S. citizens. The incumbent must possess a valid U. S. drivers license. This job also requires the successful completion of a background check as currently required for all U. S. Federal positions.

For more information and to apply please see the current job announcement at www.usajobs.gov
(http://www.usajobs.gov/GetJob/ViewDetails/303892400). Please review all details especially the section on "How to Apply".
For more information related to dinosaurs, visit rareresource.com.

Jurassic Period CSI

2011-12-29T21:21:00.000-08:00

Early last year I completed filming a new series for the National Geographic Channel. The fruits of that labour are starting to appear on TV screens around the globe. This series is not just about palaeontology…although dinosaurs are clearly an important theme.

The series explores many new techniques in the earth, physical and biological sciences, from proteomics to particles physics, and from locomotion to geochemistry. The series would not have been possible without the support and collaboration of many scientists at the University of Manchester, but especially Roy Wogelius (SEAES), David Hodgetts (SEAES), Bill Sellers (FLS), Paul Mummery (Materials), Chris Martin (Materials), Phil Withers (Materials), Adam McMahon (Wolfson Molecular Imaging Centre), Terry Brown (MIB), Alan Crossman (FLS), Jon Codd (FLS), Mark Ferguson (FLS), Matthew Cobb (FLS), Lee Margetts (Research Computing Services) and the staff of the Manchester Museum.

The series will be transmitted in the UK from February 3rd (National Geographic Channel Wild), then in Canada, France, Russia, Turkey, Australia, New Zealand, Japan, Asia (distributed through Taiwan Nat Geo), Spain, Portugal, Italy, Germany and South America National Geographic.

For more information related to dinosaurs, visit rareresource.com.

Latest findout full dinosaur fossil

2011-12-29T21:18:00.000-08:00

Even after a good nights sleep....the dueling dinosaurs are still amazing. To say they are not the most impressive dinosaurs I have ever seen, would be the understatement of the century.

When Pete Larson explained that these were his favorite dinosaur fossils....ever...I knew they would be good. However, nothing could have prepared me for the site that met my eyes yesterday in Montana. The preservation of the theropod dinosaurs bone is akin to black porcelain and the ceratopsian it choose an immortal embrace with, is a stunning dusk brown.

These timeless beauties will someday be the centre-piece of a VERY lucky museum. I am grateful to have seen these beautiful fossils in transition between their 65 million year old tomb and their future resting place.

The rancher who dug-up the specimens and the couple who have lovingly prepped the bones have only added to what is an amazing specimen. Folks who devote their lives to such endeavors have my heartfelt respect and special thanks for showing me their special find.

Since I picked-up my first fossil as a 7 year old and asked the simple question, 'What is this?'...I have dreamt of seeing such a fossil (ideally finding it myself, but hey...I'm not choosy). Even when we were digging-up the dinosaur mummy ('Dakota') in 2006, I joked that the only thing that could make the fossil better, was a T. rex holding the tip of Dakota's tail between its teeth. Little did I know, that such a fossil was literally being excavated as I said those words....a fossil that pretty much fulfills my optimistic statement.

For more information related to dinosaurs, visit rareresource.com.

Dinosaur embryo's on acid?

2011-12-28T22:49:00.000-08:00

The flight to the UK was thankfully uneventful. The food was predictably scary and the atmosphere thick by the time we arrived in Manchester. I think two hours sleep is as much can be expected on a trans-Atlantic in bucket class. I forced myself to sleep, as I knew I would soon have to be functioning on UK-time...a nasty prospect when flying West to East.

Arriving to an overcast and cold morning in Manchester, I was soon through customs, acquired luggage and headed for the train to Manchester. At 10am I was stood in my office, slightly phased...and then the day could begin, albeit cheated of a good nights sleep.

My first port of call in Manchester was Dr Roy Wogelius, an inorganic geochemist in the School of Earth, Atmospheric & Environmental Sciences. He has been leading on several papers within the palaeontology research group, on the preservation of soft tissue in the fossil record. Roy is a good colleague and a great friend who has provided a paradigm shift in my understanding of what happens when you bury a lump of animal in the ground. This might sound a simple thing to answer, but the pathways of elements around and within this system is not fully understood and are critical to our understanding of what happens when you bury anything in the ground. In our world of waste and pollutants, this question of what happens when you bury something is vital. This is the world of the science of taphonomy (literally meaning 'burial laws').

Roy and many others in the palaeontology research group have been working on everything from 65 million year old dinosaur skin, 120 million year old feathers, 50 million year old lizard skin to 80 million year old dinosaur egg shell (with bits of embryonic skin with bone preserved inside!). We are keen to quantify which elements in the fossils have remained relatively stable (and in place) since the tissue (bone, skin, etc) were originally formed and which components came from the processes associated with the fossilisation of the said tissues. What appeared a simple question of mapping and identifying the composition of the fossils, has become a major research program for the Manchester group over the past 5 years.

This work all started when I was having lunch with colleagues and we started talking about the 'mummified' dinosaur that had been discovered in North Dakota. Roy was sat at the table and joined in the conversation, as we munched our way through our curries. It was clear that he would make a major contribution to the research program...and that has to be the biggest understatement I have ever made! He has dragged me into the world of geochemistry and its a journey that I am thoroughly enjoying, albeit it quite hard get my head around sometimes (nothing that a good read cannot put right). The early work we undertook on the dinosaur mummy was published last year in the Proceedings of the Royal Society Series B (Manning et al 2009) and signified the start of my submersion into geochemistry.

For more information related to dinosaurs, visit rareresource.com.

Stuffing the dinosaur at Christmas

2011-12-28T22:48:00.000-08:00

One in particular put Solnhofen on the map: Archaeopteryx, long famous as the “first true bird.” A single feather was discovered in 1860, a tantalizing glimpse of the creature it fell from. Beginning the very next year, a series of Archaeopteryx fossils began to come to light, at an irregular rate, and eleven specimens are currently recognized (one from only a few months ago). From its many dinosaurian skeletal features, its long bony tail, and the fine teeth in its jaws, Archaeopteryx might easily have been identified as a small theropod dinosaur, and indeed an amateur mistakenly classified one specimen as the small predatory dinosaur Compsognathus. However, the marvelous preservation afforded by the Solnhofen limestone has given us specimens of Archaeopteryx surrounded by imprints of their feathers, showing that they looked rather like a modern magpie in their plumage. Wing feathers are asymmetrical like those of modern birds’ flight feathers, showing adaptation for aerodynamic use. So detailed are some of the fossils that we can even detect the fine structure of some of these feathers, showing for instance that the fibers of the large flight feathers of Archaeopteryx were organized via the barb-and-barbule arrangement that makes modern bird feathers so stable and structurally effective, despite their lightweight and delicate construction.

Several years ago I first visited the Humboldt Museum (Museum für Naturkunde) in Berlin, the home of arguably the most beautiful Archaeopteryx fossil in the world. Discovered in 1876or 1877, it lies on its back with its wings widespread, tail pointing down and head swung over its back. More important, the arms (or, should I say, wings) and tail are surrounded by stunningly clear impressions of feathers. If I had the opportunity to save any single fossil in the world, it would be this one. It is simply stunning.

The roast turkey that many of you might well partake on December 25th, is a direct descendant of a distant maniraptoran theropod dinosaur. The expression “as rare as hen’s teeth” is based upon the reality of socketed teeth growing in the jaws of birds, courtesy of their ancestral toothy theropod dinosaur gene being activated and socketed teeth growing during the chicken’s development. However, you don’t need ‘hens teeth’ to make your turkey a dinosaur…as you tuck into your meal, take time to nibble the ‘arm’ to reveal the fingers, often still tipped with tiny claws. As you pull the wish-bone (fused clavicles) think of Velociraptor and T. rex…who also share this very theropod character. Its food for thought, that 65 million years ago, it was probably our ancestors that were on the menu for the turkeys ancestors…vengeance is a dish best served 65 million years later!

For more information related to dinosaurs, visit rareresource.com.

WMU fossil hunters using satellites

2011-12-27T22:41:00.000-08:00

We’ve all looked for fossils at one time or another. But professional fossil hunters need a better way to find their treasures than amateurs. And two professors at Western Michigan University have come up with a system they hope will improve the field of paleontology. WMUK’s Eric Hyland reports:

At the Paleontology Lab at Moore Hall Professor Robert Anemone shows off some of his fossil finds.

“And what I have here is half of a lower jaw with all the teeth of an early carnivorous mammal. We see the sharp canine the slashing teeth of an animal that was a meat eater.”

He also shows a piece of a different kind of extinct mammal.

“We also have some nice examples of herbivorous mammals. Here’s one it’s an extinct form called Manisca theorium, but it probably would have looked much like some of the early horses of the time period.”

Anemone says success using the old way of finding fossils was often just happenstance.

“So your car breaks down and you get and you know…and you’re wandering around and you see some beautiful fossil. Or you take a wrong turn down a road you’ve never been down before and you see some good looking rocks ahead and you check them out and there’s really good fossils that way. So it’s almost like this legendary part of doing Paleontology, that you just…you go out to these basins where you know the rocks are but you don’t really know where the fossils are and you rely on hard work but also good luck.”

But there may be a better way that Anemone and Geography Professor Jay Emerson have developed. Emerson is responsible for the behind the scenes technical work on developing this new method of finding better dig sites. Basically what they do is they use a Landsat satellite image of the Earth and classify it into what they call “different land cover categories”.

“We’re not actually seeing the fossils themselves in the Landsat imagery rather we’re classifying the image into place that just have sage brush, areas that are forested, or just bare soil that are things we’re not interested in. But what we are interested in finding are areas where there are sandstone outcrops because just beneath these layers of sandstone is this mudstone that tends to have the fossils in it.”

Emerson went along on one trip to Anemone’s work site, in Wyoming’s Great Divide Basin. Emerson hoped to better understand how his maps would be used and what exactly Anemone was looking for. Archeology has used similar satellite mapping to assist them in their finds, but now Paleontology will have its own version of satellite maps to assist them in their search. This collaboration between Geography and Paleontology is new for these fields especially with the depth being experimented with here. Emerson explains how he also saw the serendipitous nature to fossil finding and thinks that Geographical Studies will help out.

“We’re trying to add a little bit more analytical rigor to it, to narrow down and focus efforts rather than doing a generalized search.”

Their idea was inspired by one of their graduate students, who went to Wyoming to assist Emerson and Anemone. This student worked on a project that would be the beginnings of the predictive model for finding fossil locations.

“There’s no way we’re going to find fossils from our computer desktops. But we’re using the computer technology, the technology from geography, remote sensing, GIS, we’re using it to allow us to search in a more smart fashion when we go out to the field and do the hard work of looking for fossils on the ground.”

In recent months Anemone and Emerson have been using this new system to figure out where to dig when they go back to Wyoming this summer.

“The plan is to return to the field during the month of July 2012 and go to some of these regions that this model has picked out, and hopefully we will work long and hard and walk a lot of the areas in these particular places and hopefully we will find some productive localities. That’s certainly the plan.”

After a recent Paleontology conference in Las Vegas many of their fellow colleagues wanted to try this predictive model themselves, even before its official field test.

For more information related to dinosaurs, visit rareresource.com.

Rare fossils explain oceanic evolution

2011-12-27T22:33:00.000-08:00

Scientists have found dinosaur fossils dating back to more than 450 million years ago, which they believe can reveal how ocean communities have evolved.

Found in a disused Powys quarry, the fossils are believed to be of a kind never discovered before. They belong to the area which is now the town of Llandrindod Wells, once partially lying under water.

Found by paleontologists Dr. Joe Botting, Dr. Lucy Muir and Talfan Barnie in 2004, the fossils are in variety of sponges and worms to nautiloids, which are similar to a squid with a shell.

“The creatures' images are said to be 460m years old and from the part of geological time known as the Ordovician Period,” said Dr. Muir.

There was once an ocean between Scotland and England/Wales and the area around Llandrindod was part of a chain of volcanic islands during the Ordovician Period, a little bit like Indonesia today, Muir described.

"As the island grew and was eroded, a lot of sediment [sand, silt and mud] was washed into the sea. This sediment buried animal remains quickly, and in some cases buried them alive, so they didn't fall apart or get eaten," he added.

X-rays showed a spectacular hydroid which is entirely new and surprising for researchers because they claim it is entirely enclosed within the rock.

"The new fauna gives us a picture of a fossil community that not only is entirely new, but is also surprising. It resembles to some extent some of the modern communities found in the very deep sea," said Muir.

"It shows us that Ordovician ecosystems were even more diverse and complicated than we imagined,” he added.

The fossils have been sent to the Natural History Museum in London to be preserved.

For more information related to dinosaurs, visit rareresource.com.

Rare fossils explain oceanic evolution

2011-12-26T21:15:00.000-08:00

Scientists have found dinosaurs fossils dating back to more than 450 million years ago, which they believe can reveal how ocean communities have evolved.

Found in a disused Powys quarry, the dinosaurs fossils are believed to be of a kind never discovered before. They belong to the area which is now the town of Llandrindod Wells, once partially lying under water.

Found by paleontologists Dr. Joe Botting, Dr. Lucy Muir and Talfan Barnie in 2004, the fossils are in variety of sponges and worms to nautiloids, which are similar to a squid with a shell.

“The creatures' images are said to be 460m years old and from the part of geological time known as the Ordovician Period,” said Dr. Muir.

There was once an ocean between Scotland and England/Wales and the area around Llandrindod was part of a chain of volcanic islands during the Ordovician Period, a little bit like Indonesia today, Muir described.

"As the island grew and was eroded, a lot of sediment [sand, silt and mud] was washed into the sea. This sediment buried animal remains quickly, and in some cases buried them alive, so they didn't fall apart or get eaten," he added.

X-rays showed a spectacular hydroid which is entirely new and surprising for researchers because they claim it is entirely enclosed within the rock.

"The new fauna gives us a picture of a fossil community that not only is entirely new, but is also surprising. It resembles to some extent some of the modern communities found in the very deep sea,"

For more information related to dinosaurs, visit rareresource.com.

Unknown Sixth Toe Discovered in Elephants

2011-12-26T21:11:00.000-08:00

Buried beneath the leathery skin of an elephant’s foot lies one of anatomy’s unappreciated mysteries. Three hundred years ago, a surgeon claimed elephants had six toes instead of the usual five, setting off a debate about whether an extra digit was really possible. Modern anatomists scoffed at the idea, insisting instead that the extra toe was really just a big lump of cartilage. Now a study of scores of elephant feet shows that the lump really does turn into bone. The digit is not a true toe — it’s more like a panda’s faux thumb. But it nonetheless helps support the pachyderm’s mighty girth.

In elephants, “the unique structure of the foot must clearly be considered a key innovation,” says Matthew Vickaryous, a vertebrate morphologist at the University of Guelph in Canada who was not involved in the study. “The elephant foot is deceptively complex.”

The giant panda’s extra thumb is a famous example of evolution’s inventiveness. The animal’s real thumb looks just the rest of its fingers, and together they form a paw with five claws. But in addition, pandas have a somewhat opposable digit low on the inside edge of the paw that helps them grasp bamboo. This “thumb” is really just a sesamoid, a bit of bone that typically forms inside tendons and ligaments where they cross joints. The kneecap is one example of a sesamoid. But in the panda, the sesamoid on the outside base of the true thumb became enlarged, taking on a digit-like identity that helps the animal eat more efficiently.

John Hutchinson, an evolutionary biomechanist at the Royal Veterinary College in the United Kingdom, wondered if something similar was going on with the elephant’s toe. An expert in elephant locomotion, he had for years collected and preserved elephant feet — flesh and all — from animals that died in zoos. The animals ranged in age from newborns to those in their 50s. He had been performing computed tomography (CT) scans, which use x-rays to image tissues in slices to get 3-D pictures of them, and other studies to understand how the feet worked, when he noticed that the cartilaginous lump often became denser, like bone, as each elephant aged. The lump could be up to 15 centimeters long and 6 centimeters wide, and it really did seem like it could work like a toe, he says. It’s in the same position as the panda’s thumb, but it’s embedded in cushiony tissue called a fat pad.

Though they are not visible, an elephant’s real toes are oriented somewhat vertically, so that the animal is actually walking on tiptoe, with the wrist and heel off the ground. At first glance, the extra toe seems to be too high off the ground to bear weight or do much good. But by putting some of the collected elephant feet in a device that made it seem as if the foot was supporting the elephant’s weight and imaging them with additional CT scans, Hutchinson and his colleagues showed that the faux toe also acts to support weight, as they report online Dec. 22 in Science. “The extra digits do change position and come into contact with the ground,” says Elizabeth Brainerd, a functional morphologist at Brown University who was not involved in the study.

To trace the evolution of the extra toe, Hutchinson and colleagues performed CT scans on feet of tapir-like species representing the earliest elephant-like mammals and on more recent elephant fossils. They found no evidence of the extra toe in 50-million-year-old fossils, which appeared to walk flat-footed, leaving no room for the sixth toe. Those animals likely spent most of their time in the water. But by 40 million years ago, the more recent fossils had telltale signs of this sixth toe. At that time, elephants were getting larger and becoming more land-based. Their feet were changing to better support their weight, with an expansion of the fat pads.

Although extra fingers and toes sometimes arise as genetic anomalies, and are even common in certain cat breeds (a condition known as polydactyly), Hutchinson thinks it was easier for the sesamoid bone to be recruited for extra support than for a true sixth toe to evolve in elephants. Making a sixth toe would have required a revamping of the complex developmental program that leads to the formation of the foot, he explains.

The sesamoid bone came in handy for the elephant, notes Vickaryous. “Gigantic body forms require innovative adaptations to cope with large increases in body mass.” The researchers are investigating whether other very large animals, such as sauropod dinosaurs, had similar innovations.

Many scientists think that the study of anatomy is past its prime. But that’s not true, says Marcelo Sánchez, an evolutionary morphologist at the University of Zurich in Switzerland. “Even animals as ‘well known’ as elephants can be subject of exciting, new discoveries, the study of which provides major insights into evolution.”

For more information related to dinosaurs, visit rareresource.com.

Petrified Forest adds 26,000 acres of private land

2011-12-25T21:42:00.000-08:00

The federal government is gaining control over an even larger expanse of rainbow-colored petrified wood, fossils from the dawning age of dinosaurs and petroglyphs left by American Indian tribes who once lived in eastern Arizona.

The National Park Service secured the first major private ranch within the Petrified Forest National Park boundaries on Thursday, capping off negotiations that began years ago with the help of a conservation group. Scientists say they're eager to explore the more than 26,000 acres that have remained largely untouched and discover even more treasures.

"The opportunity to actually go out into an area that hasn't been worked before by other researchers, the opportunity to find things that are truly new to science — there's a very good chance of that, so it's pretty exciting," said Bill Parker, a paleontologist at the park. "I think we're definitely going to be able to find some things that are new out there that are really going to enhance the story of the park."

Congress expanded the boundaries of the park in 2004 from 93,500 acres to about 218,500 acres but did not immediately appropriate any money to buy the private inholdings. The funding for land purchases came years later through a federal land protection program. The Park Service now has acquired about a third of the 120,000 acres it wants, with the most significant acreage coming from a transfer of U.S. Bureau of Land Management land and Thursday's $8 million purchase of the Paulsell Ranch within the park boundaries.

Mike Ford, the Southwest director for the Conservation Fund, said he began a quest to acquire the land for the Park Service in 1999 at the request of former Interior Secretary Bruce Babbitt. Ford recalled driving around in a pickup with the landowner, Marvin Hatch, surveying the land and trying to strike a deal that the two never quite agreed on. Hatch's family contacted Ford after Hatch died to continue the talks.

Petrified wood is scattered throughout the undeveloped ranch land south of Interstate 40 where cattle haven't grazed for years, but Ford notes "you're not going to see dinosaur bones protruding from the ground."

"I tell people about this part of the world — it's so rough and crude, it has its own beauty," Ford said. "For people who love the Southwest and love those kinds of landscapes, it's isolated, it's remote, it's out there. That crudeness has a beauty that you have to be a desert rat to appreciate."

The Park Service expects to spend a few years doing inventory on the land before it decides how the public can best enjoy it, Parker said. Some 630,000 people visit the park each year.

The ranch is a mix of grasslands that would be ideal for archaeological and wildlife finds, and badlands with fossils from the Triassic period that scientists say dates back 220 million years.

Parker said almost 90 new plant and animal species have been found in the park that was designated a national monument in 1906 and a national park in 1962. One of the most significant discoveries was Revueltosaurus, which is related to the crocodile but first was believed to be a plant-eating dinosaur because of its teeth found in New Mexico. A full skeleton was later uncovered at the petrified forest.

Institutions such as the American Museum of Natural History and the University of Texas at Austin have succeeded in finding plant and animal fossils on the ranch land, said Parker, pointing to its potential. Park archaeologist Bill Reitze said surveys of the new property also have shown promise for archaeological sites like early basket-maker villages and petroglyph sites.

"Acquisition of this land may significantly enhance our knowledge of early peoples of the area," Reitze said.

Ford, who is certain that Hatch would be thrilled to know the land is in Park Service hands, said the Conservation Fund now will work to acquire other sites within the petrified forest. Major parcels of private land are held by less than a handful of owners. The Hatch family didn't immediately respond to a request for comment.

"Certainly we don't see this as the end, but we're in a really different time right now politically, economically and otherwise," Ford said. "We trust and hope Congress continues to support important acquisitions like this."
For more information related to dinosaurs, visit rareresource.com.

Origin of dinosaur bone found in a Sunderland garden leaves experts in the Jurassic dark

2011-12-25T21:38:00.000-08:00

A DINOSAUR bone from 115million years ago has been found in a Sunderland pensioner’s back garden.

Thought to be from an Iguanodon, which could grow up to 10m long, it was found by the OAP as he was doing a spot of gardening.

Thinking it may be a bone, he popped it in a carrier bag and took it down to Sunderland Museum and Winter Gardens in case it was of interest.

Little did he realise that he had uncovered a major palaeontological find.

Staff at the museum in Burdon Road were amazed when they realised what the pensioner had brought to them. The remarkable discovery is thought to be the first of its kind in the Sunderland area.

The Iguanodon walked the earth 130 to 115 million years ago, during the Lower Cretaceous period.

Sylvia Humphrey, keeper of geology at Tyne & Wear Archives & Museums, spotted the possibility of it belonging to an extinct species and immediately contacted specialists at the Natural History Museum in London to verify the find.

It is believed the bone originates from the south of the country, but has somehow made it up to Sunderland.

She said: “It’s really quite a puzzle as to how the bone got here. Dinosaur bones are younger than the rocks of this area, as this region is on the Permian strata, which is 250 million years old.

“The rocks of this region are far too old for it to have lain here, so it has been lost or dropped by someone in the past.

“We think, although we can never be sure, that it is a piece of vertebrae from an Iguanodon, and may originate from the Wealden area.”

The dinosaur bone is now going on display in Museum Street in Sunderland Museum & Winter Gardens so visitors can see this bizarre find for themselves.

Jo Cunningham, manager of Sunderland Museums said: “We’re very grateful to our museum visitor for bringing this amazing find in to us; it will always remain a mystery as to how it found it’s way there, and if they hadn’t been digging up their garden it could have lain undiscovered.

“The person who found it wishes to remain anonymous, but has kindly agreed to loan it to Sunderland Museum & Winter Gardens so that the people of the region can enjoy this unusual find.”

Dr Angela Milner from the Palaeontology Department at the Natural History Museum, London, who confirmed that the bone is from the spine, or tail of an Iguanodon-like dinosaur said: “The bone is the solid part - the centrum - of vertebra from the tail of an Iguanodon-like dinosaur. It is not complete enough to identify it more precisely.

“The rocks around Sunderland are much too old to contain dinosaur bones so there are only two explanations as to how it got there - either by glacial transport or a one-time souvenir from the south coast of England where Iguanodon bones are not infrequently found by fossil hunters.”

For more information related to dinosaurs, visit rareresource.com.

Rare dinosaur fossil found in Canada

2011-12-22T21:05:00.000-08:00

An oil company worker has stumbled upon a rare fossil of a plant-eating dinosaur buried in the oil sands of Canada's western province of Alberta.

The 110-million-year-old fossil belongs to an ankylosaur, a dinosaur with powerful limbs, armor plating and a club-like tail, Reuters reported.

The find has been a surprise to many archeologists since the region where it was found was covered by water in ancient times.

"We've never found a dinosaur in this location," said Donald Henderson, a curator at Alberta's Royal Tyrrell Museum. "Because the area was once a sea, most finds are invertebrates such as clams and ammonites."

Experts say the fossil had once been a creature about 5 meters long and 2 meters wide.

"It is pretty amazing that it survived in such good condition," said Henderson, adding that the fossil was not flattened by the heavy rock sediment.

"It is also the earliest complete dinosaur that we have from this province."

Work has been halted at the site when the discovery made and archeologists will have three weeks to remove the fossil and take it to the Royal Tyrrell museum.

The last major dinosaur fossil found in northern Alberta was a giant reptile called an ichthyosaur, which was discovered 10 years ago near Fort McMurray.

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World's Smallest Dinosaur Fossil Found in Guizhou

2011-12-22T20:59:00.000-08:00

Photo taken on April 5, 2007 shows two dinosaur fossils found in Xingyi of Guiyang, capital of southwest China's Guizhou Province. The two dinosaurs, respectively 23mm and 25mm in length, are believed to be the smallest dinosaur fossils in the world by now.

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Past of dicynodont found on every place

2011-12-21T21:12:00.000-08:00

Dinosaurs Fossils found on a Tasmanian seaside have verified the everyday living in Modern australia of the dicynodont – an odd-looking types that resided 30 thousand decades before the old – demonstrating it persisted on all areas.

The dinosaurs fossils were found by a several jogging on a seaside on the Tasman Peninsula.

The plant-eating creatures, about the dimension a cow, resided about 250 thousand decades ago and became vanished about 20 thousand decades ago.

Complete types of the dicynodont have been found in Indian and Southern African-american. The development of the two brain parts found in Tasmania has empowered experts to affirm that the being resided in Modern australia. The only other proof was a traditional found in Qld in 1983.

A paleontologist, Dr Tim Rozefelds, from the Qld Art gallery, said the "strange-looking monster " may have live through more time in Modern australia than on other areas.

"Australia is an region place and maybe some elements like the monotremes, like the platypus and the echidna, live through here while elsewhere on the planet they became extinct"

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Scientists Find Antarctic Traditional Of A Large, Plant-Eating Dinosaur

2011-12-21T21:08:00.000-08:00

Remains of a new sample of titanosaur, a number of plant-eating dinosaurs with incredibly extensive neck and tails, have been discovered for initially on what is now Antarctica, and come from some time when the freezing place was hotter and teemed with plants.

Dr. Ignacio Alejandro Cerda, from the Conicet analysis company in Argentina, and fellow workers authored in the In german paper Naturwissenschaften: “Our discovering indicates that innovative titanosaurs obtained a international submission at least by the Overdue Cretaceous.”

The new sample, made up of area of backbone almost 20-centimeters extensive, considered to have come from the center third of the dinosaur’s longest tail. It was discovered on Wayne Ross Region by an Argentinian-led group, who determined the past as that belong to a lithostrotian titanosaur from the Overdue Cretaceous interval of around 70 thousand decades ago.

These titanosaurs were the prevalent number of sauropod dinosaurs until the extinguished of all non-bird dinosaurs at the end of the Cretaceous.

Although they were one of the most wide-spread and effective types of sauropod dinosaurs, their source and distribution are not absolutely comprehended and this development of 1 backbone fossil produced too little details to allow rumours about the dinosaur’s types.

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Latest A nice Nyctosaurus Found

2011-12-20T21:50:00.000-08:00

I say ‘nice’, but actually this is really good. Nyctosaurus material is rather few and far between and this is certainly one of the better specimens. I’ve mentioned nyctosaurs a couple of times before and even among pterosaurs they are rather strange beasts, not least for having lost digits 1-3. The Carnegie actually has some nice pterosaur material on display (always a good thing) and having overloaded the Musings with various parts of their dinosaur exhibits, it seemed a good time to get back to some (more) of their pterosaur-y goodness.

As you can see this specimen is largely in 3D (unlike much other stuff from these beds) and the skull, while bashed up, is especially nice. Other things like the legs and wrists are rather more informative than you might expect too. One thing worth noting is that this specimen was mentioned specifically by Chris Bennett as very likely *not* having a massive head-crest. It seems not all Nyctosaurus bore the ‘antler’.

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New Camplognathoides fossils found

2011-12-20T21:47:00.000-08:00

Bit of a overdue one today! I’m falling.

Anyway, this is the horrible-to-spell Campylognathoides, a basal non-pterodasctyloid pterosaur known from Cheaper Jurassic furniture. This is an especially awesome sample that is on present in the Carnegie (how did you guess) and reveals off elements like the breast bone which is all too unusual for pterosaurs.

One element Campylognathoides does produce to be able to discuss is pterosaur systemtics. Those in the know will know that for about a several years now there have generally been two contending pterosaur phylognies that have essential variations and never seem in order to match in the center (though there have been recommendations that Darwinopterus might just fix this issue).

However, as Lady Uniwn is attached to saying (and quite rightly) for all that individuals focus on the arguments between these phylogenies, there is really quite a lot of essential contract, and the two plants are in a lot of techniques really very congruent. One element that is certainly typical in both is the sister-taxon connection of Campylognathoides with Eudimorphodon and that at least is one element this indicates very much everyone wants on.

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Old seeker sentenced after recognizing taking fossils

2011-12-19T21:32:00.000-08:00

Renowned dinosaur seeker Nathan Murphy was sentenced last night to three decades probation after asking accountable to taking past.

U.S. Region Assess Sam Haddon purchased Murphy to spend four several weeks of his probation in a pre-release center and required him to pay $17,325 (£10,395) in restitution.

Murphy was charged of taking 13 dinosaur bone from middle Montana's Nightmare Stream badlands in 2006. He asked for forgiveness accountable in May to robbery of specialists property.

The situation provided a unusual look into the black-market traditional business while wiping out the track record of the 51-year-old, self-taught paleontologist who increased to track record on his development of the best-preserved traditional, known as Leonardo, in 2000.

Murphy was sentenced last month to 60 days in arrest on a individual condition depend including a lost raptor traditional. Govt prosecutors desired him to provide an additional 10 several weeks on the specialists charge.

'Murphy's phrase should send a concept to those that practice for-profit source tracking and individuals with less experience as well,' U.S. Lawyer Bill Mercer authored in the national pre-sentencing professional recommendation.

The specialists desired the $17,325 in restitution for damage done to community areas during Murphy's archaeology excavations.

Murphy desired the more lax phrase of three decades probation plus restitution.

'This situation is a training well acquired,' Murphy's legal professional, Erina Moses, authored in records presented to the court.

Murphy operates a business in Billings that expenses customers $200 (£120) a day to sign up in dinosaur digs.

He was paleontology manager at the Old Field Place in Malta, Mt, for 15 decades before resigning in September 2007 - about the same time condition and federal specialists started analyzing his actions.

Murphy's robbery situation was awaiting when Chief executive Barack Government finalized a law in Goal establishing a charge of up to five decades for taking bone or other past from community land.

The Paleontological Resource Protection Act is the nation's first-ever law to particularly secure past. It came too overdue to apply to Murphy's situation.

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Paleontologist Anthony Martin uses old expertise to make new discoveries

2011-12-19T21:23:00.000-08:00

You’ve seen it in old movies: a Indigenous National or a durable frontiersman kneels to analyze monitors on the earth, following the pathway of a have, deer, or two-legged attacker. These days, tracking is a leisure activity, not a requirement, and monitoring expertise are hardly necessary for contemporary everyday living. But Anthony Martin, a paleontologist and person lecturer in ecological research, has a eager eye and an abiding understanding for monitoring creatures. Martin lately created worldwide analysis information for discovering the first meat-eating old monitors in Victoria, Modern australia.

“I look for all types of pet monitors, across all types of substrates—beach fine sand, stones, mud, wood needles, and actually leaves,” Martin says. “I monitor our cat across the carpeting at house. It pushes him crazy.”

While many paleontologists are looking for fossilized bone, Martin is more considering oblique proof of creatures and vegetation that populated our planet a lot of decades ago. Known as know past, such proof of historic life features monitors, tracks, burrows, nests, even fecal matter.

On his workplace in the Numbers and Science Middle are old bone lately found by scientists in Ak. “I individually do not work with fossilized bone. These are just on loan,” Martin says, selecting up a seventy-million-year-old hadrosaur leg.

He deals the leg for a finger-sized, globular heap of what looks like solidified mud. It’s actually a fossilized a similar drill down, most likely created by halictid bees that were talking about seventy-five thousand decades ago. “This, to me, is much more interesting than bone, because it gives me immediate proof about conduct,” Martin says. “Why were the bugs burrowing into the earth, and why did they select that particular surface to drill down in? What is awesome is that you can use know past to get into the ecosystem of a lot of decades ago.” Martin was part of a group that discovered the first trace- and body-fossil proof of a burrowing old at a website in Mt.

In springtime 2006, Martin used a Winship Prize from Emory Institution to invest some time at Monash Higher education in Victoria, Modern australia, house to the Education of Geosciences and the Monash Science Hub. The guts is focused by Patricia Vickers-Rich, a paleontologist whose community outreach and analysis Martin had long popular.

One day, on a lark, Martin came with Johnson Wealthy, a paleontologist from the Art gallery of Victoria and the man of Vickers-Rich, to the Dinosaur Thinking dig website near the seaside area of Inverloch. The Victoria seacoast represents the joint where Modern australia was once become a member of to Antarctica. Cheaper Cretaceous strata of Victoria have produced a significant amount of old bone since 4 decades ago, developing the best-documented finish old construction on the planet. However, only one old monitor, from a little herbivorous old, had ever been discovered.

Martin instantly started jogging along the ocean, looking carefully at the rubble. “You will not discover anything,” Wealthy cautioned him, allowing him know that many other paleontologists had tried and never discover monitors.

But within a long time of his introduction, Martin recognized what seemed to be the fossilized know of a old toe list. That same day, he discovered a second monitor that was likewise simple. “I have so much practical exposure to old monitors, as well as monitoring contemporary creatures, that I can area imperfect monitors,” Martin says. “I see toe styles. I see pull thoughts. I just see all these things.”

Encouraged by Martin’s discover, staff at the website kept an eye out for more monitors. A season later, in March 2007, Monash basic higher education scholar Tyler Lamb discovered a third track—a finish one displaying all three toes. Martin (who is now an honorary analysis affiliate at Monash), Wealthy, Vickers-Rich, and Lesley Kool, another paleontologist from Monash, released a report on the monitors, after analyzing that they were created by large meat-eating dinosaurs (theropods) during the Cretaceous period. Based on the fourteen-inch time the monitors, the experts estimation that the theropods assessed 4.6 to 4.9 toes at hip size.

Martin describes how a old got into the wet fine sand of a stream floodplain, developing a depressive disorder. Water ran over the depressive disorder and chock-full it with coarser-grained fine sand that had just the right nutrient mix to firm up like definite. Sailing vegetable trash was placed around the tips, making dark-colored remnants that help determine its describe. Modern tides and ocean are sporting away the smoother content encompassing the monitor. “One hundred or so and twelve to fifteen thousand decades later, it’s just now disclosing itself to us,” Martin says.

Can learners become as engaged by historic burrows and pet monitors as they can by real old bones?

“They can if I get carry of them,” Martin says. He educates a first-year workshop known as How to Translate Behaviour You Did Not See, which requires learners on monitoring trips to Lullwater retain. “Tracking increases your community,” he says.

For example, not many people understand that deer walk the Emory university. Martin and his learners have determined deer monitors, along with those of beaver, grey foxes, and stream otters in Lullwater. One of Martin’s preferred Lullwater discovers was the on top of a red fox, along the southern pay of Peachtree Stream. A little bar on the rearfoot and fuzzy shields identify fox styles from those of every day pets.

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Darren Tanke’s Gorgosaurus preparing 32: Getting rid of the location cover 2

2011-12-18T20:38:00.000-08:00

Some parts come off in big messages. A avoid of wood is useful as a fulcrum with the screwdriver(s) to pry up the plaster bandages. After 1.5 periods of pulling and getting, most of the cover was off, diamond was showing and the ilium discovered in the location was also seen again for at first in several generations.

The mind was mentioned again with a red thought pen using the drilled holes. As the cover got thinner, a quite big factor preferred to increase off the mind location. This was too big, so I used a throw divider panel to cut two identical selections through the cover and produced the plaster and burlap in between.

This separated the other cover into two parts and the plaster/burlap protecting the mind location was raised off easily. By doing this, the jacketed mind was seen. The linen and dark-colored plastic-type content linens was unveiled and removed- the latter with a side borders. The mind cover looks odd with white-colored sandstone and darker mud, but the latter was a poultice I complicated and put on the unveiled nasal area to safe it from the jacket- I did not want the cover sent right against the mind.

The poultice of dry mud was eliminated and preparing on the mind started again. The mind is most most definately partial on this element and the cuboid seems more horribly preserved- the cuboid is very splintery. Several of the teeth screen white-colored turning represents (root etchings) designed by modern crops as they aged against the example.

It is thought the real platform leach nutritional value out of the conventional with possible unwanted outcomes on the conventional. The rest of the unveiled diamond was given to dry out and when done, glue was squirted into the smashes, etc to safe it for the long run preparing.

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Rare information about Scarfe’s snout

2011-12-18T20:31:00.000-08:00

After per weeks duration of pterosaur content, it’s time for Lady Martill to toss in with this invitee attempt. Lady and Bob Etches have just described a new pterosaur and Lady has been type enough to pen this little attempt on the critter:

Cuspicephalus scarfi from the Overdue Jurassic Kimmeridge Clay-based Development of Dorset is one of those bothersome past. It was clearly a wonderful pet, with extensive, trim lips and excellent pearly whites that would have created it look amazing.

It is without uncertainty a breaking traditional, showing a near ideal right side describe, with only a little bit of the dorsal relax losing. OK, it is sad that the cheaper jaw and relax of skeletal system is losing, but in the UK, this sample is the best element since the second sample of Dimorphodon was found in the Lower Jurassic in the mid 19th century.

But despite its near completeness for a English pterosaur brain, it is not entirely clear where it is supposed to be in the fantastic structure (or schemes), of pterosaur phylogeny. It usually be a pterodactyloid just like Germanodactylus on the foundation its individual NAOF and immediately dorsal boundary, but when in contrast to Darwinopterus, its affinities become less crystal obvious.

Sure, it is certainly not Darwinopterus, but it is certainly not Germanodactylus in the most stringent feeling either. Lady Unwin feels it might lie near to the platform of Dsungaripteroidea, and I am likely to believe the fact, but careful attention that this is centered mainly on the dynamics of its crest… not a excellent requirements given the submission of stretch out fibrous-looking crests in Pterosauria.

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Velociraptors' Killer Claws Helped Them Eat Prey Alive

2011-12-16T22:19:00.000-08:00

The giant killer claws of dinosaurs such as Velociraptor might have been employed much as birds of prey use similar talons — as hooks to keep victims from escaping, researchers say.

The discovery could also shed light on the origin of flight in birds, investigators added.

The raptor dinosaurs, made famous by the book and film "Jurassic Park" all possessed unusually large, curved talons on the second toes of each foot, which they held off the ground like folded switchblades. Known more formally as dromaeosaurids, they included the famous Velociraptor and its larger relative Deinonychus, and were closely related to birds.

Past studies had proposed that the sickle claws of these raptors were used to slash at prey or to help climb onto victims. Now research into modern-day birds of prey suggests a new possible killing technique — as hooks to lock onto targets.

The second toe

Scientists noted that modern hawks and eagles possess similar enlarged claws on their second toes — the "digit twos" or "D-2s." These claws "are used as anchors, latching into the prey, preventing their escape," said researcher Denver Fowler, a paleobiologist at the Museum of the Rockies in Bozeman, Mont. "We interpret the sickle claw of dromaeosaurids as having evolved to do the same thing — latching in and holding on." [In Photos: Birds of Prey]

"This strategy is only really needed for prey that are about the same size as the predator — large enough that they might struggle and escape from the feet," Fowler said. "Smaller prey are just squeezed to death, but with large prey all the predator can do is hold on and stop it from escaping, then basically just eat it alive."

"Dromaeosaurs lack any obvious adaptations for dispatching their victims, so just like hawks and eagles, they probably ate their prey alive too," Fowler said.

Other features of the feet of these dinosaurs suggest they followed what Fowler and his colleagues call "Raptor Prey Restraint" — RPR, or "ripper." For instance, the toe proportions of raptors seem more suited for grasping than running, and the metatarsus — which includes the bones between the ankles and the toes — is more adapted for strength than speed.

"Unlike humans, most dinosaurs and birds only walk on their toes, so the metatarsus forms part of the leg itself," Fowler said. "A long metatarsus lets you take bigger strides to run faster, but in dromaeosaurids, the metatarsus is very short."

All in all, Velociraptor and its kin do not seem adapted to simply running after prey.

"When we look at modern birds of prey, a relatively short metatarsus is one feature that gives the bird additional strength in its feet," Fowler said. "Velociraptor and Deinonychus also have a very short, stout metatarsus, suggesting that they had great strength but wouldn't have been very fast runners."

Such behavior intriguingly contrasts with that of their closest known relatives, a very similar group of small carnivorous dinosaurs called troodontids.

"Troodontids and dromaeosaurids started out looking very similar, but over about 60 million years, they evolved in opposite directions, adapting to different niches," said Fowler. "Dromaeosaurids evolved towards stronger, slower feet, suggesting a stealthy ambush predatory strategy, adapted for relatively large prey. By contrast, troodontids evolved a longer metatarsus for speed and a more precise, but weaker grip, suggesting they were swift but probably took relatively smaller prey."

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Is Triceratops One or Three Species?

2011-12-16T22:14:00.000-08:00

Triceratops, with its three large horns and great ruffled headdress, seems distinctive enough, but at one time paleontologists had named more than a dozen different species of the rhinoceros-like dinosaur.

These have been condensed into three recognized species in the Triceratops genus, but some researchers believe that number should be lower still: They suggest there is just one Triceratops, of whom the size and shape of its skull and head ornaments changed as it matured.

"It's important to understand how different dinosaurs grew," study researcher John Scannella, of Montana State University, told LiveScience in an email. "We are learning that many of them underwent considerable transformations throughout development, which leaves the potential for many different-looking growth stages that may be misinterpreted as many different-looking species of dinosaur."

The three species in question are: Triceratops, the classic three-horned, clown-ruffled dinosaur; Nedoceratops hatcheri, which the researchers suggest is an intermediate stage, but is only represented by a single fossil; and Torosaurus latus, which seems to be much larger than Triceratops and of which there are about a half dozen good-quality specimens. In the growth-stage scenario, Torosaurus would be the "old man" of the group.

Not everyone fully agrees with the remodeling, particularly Andrew Farke, a researcher from the Raymond M. Alf Museum of Paleontology in California. "I agree with them on many points… It's just the interpretation that I disagree with," he said, referring to the reserachers' conclusion that the different species are just different growth stages of the same species.

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New Dinosaurs Pachycephalosaur head fossil is founded

2011-12-15T21:30:00.000-08:00

And so ends Carnegie marginocephalic week with the last of their pachycephalosaur material. For once though, this is something I really haven’t had before. While long ago I did feature a cast of a Pachycepahlosaurus skull (that looks suspsiciously identical to the various mounted skeletons I’ve show) here at least is something a bit different.

First off, there’s a skull of Stegoceras (above, and the small one below) which even to my inexpert eye is clearly rather different to that of Pachy. Moreover, the ‘shelf’ at the back of the head – the key character that unites the pachycephalosaurs with the ceratopsians, is clearly visible and more dramatic that the usual fine bosses and spines that are generally available.

The second piece is also a Pachycepahlosaurus skull-cap though in rather less good condition, though I’m not sure if the lack of spikes and so on at the back of the head is due to wear / damage, or a lack of development. I suspect the former, since this was rather larger than the cast on display.

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Carnegie mural pterosaurs

2011-12-15T21:28:00.000-08:00

As I noted yesterday, I kept the few pterosaurs apart from the gallery. This was mostly because I simply couldn’t get very good photos of them. High up on the walls it made photography difficult (and while yes, there are balconies, I was then shooting across the entire hallway).

The first two are from the Late Jurassic layout and it’s not entirely clear what they are supposed to be. That’s no criticism of the artists, the Morrison is rather lacking in pterosaur material and to be honest many of the basal pterosaur look really quite similar, though if pushed I’d probably say the upper ones were rhamphorhynchines and the lower scaphoganthines. At the bottom though is something rather more obvious, it’s Quetzalcoatlus and of course this goes alongside the mounted cast that hangs from the ceiling.

While obviously there’s the old running joke about pterosaur just being pictured alongside sauropods for scale, it’s understandable here where the dinosaurs really are the star of the show and for the Morrison especially (and this is essentially a Morrison exhibit) there’s not much and nothing in the Carnegie collections at all, so their use as ‘background’ is fair enough. Well worth showing though!

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Canadian dig yields tiny dinosaur

2011-12-14T21:34:00.000-08:00

The smallest meat-eating dinosaur yet to be found in North America has been identified from six tiny pelvic bones.

Hesperonychus was the size of a small chicken, and used its rows of serrated teeth to feed on insects, experts say.

The bird-like creature is closely related to Microraptor - a tiny feathered dinosaur discovered in China.

The specimen helps to confirm that reptiles, and not mammals, filled the role of small predators during the age of the dinosaurs.

The fossil skeleton, which lay misidentified for 25 years as a lizard, belongs to a group of dinosaurs called the theropods - bipedal reptiles that eventually gave rise to birds.

"Despite the discovery of exquisitely preserved skeletons of small bird-like dinosaurs in Asia, they are exceedingly rare in North America," explained Dr Philip Currie, a palaeontologist from the University of Alberta and co-author on the paper.

Dr Currie had been pondering why so few small fossils have been unearthed in Alberta, Canada - one of the world's richest sites for large-dinosaur bones.

He suspected that small dinosaurs did not preserve well in the region of the prevalence of larger predators in the area.

"There were many large dinosaurs running around eating them, and small bones are easily washed away by rivers [common in this region during the Cretaceous period]", Dr Currie said.

The new find casts more doubt on whether mammals would have acted as small predators in Cretaceous-era North America. The fossilised pelvis came from an animal that weighed no more than 1.9kg (4.2lb) and appears distinctively reptilian.

"This tells us that [as in Asia], North American dinosaurs likely out-competed mammals for both large and small predator niches," Dr Currie told BBC News.

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New dinosaur gives bird wing clue

2011-12-14T21:30:00.000-08:00

A new dinosaur unearthed in western China has shed light on the evolution from dinosaur hands to the wing bones in today's birds.

The dinosaur fossil, from about 160 million years ago, has been named Limusaurus inextricabilis.

The find contributes to a debate over how an ancestral hand with five digits evolved to one with three in birds.

The work, published in Nature, suggests that the middle three digits, rather than the "thumb" and first two, remain.

Theropods - the group of dinosaurs ancestral to modern birds and which include the fearsome Tyrannosaurus rex - are known for having hands and feet with just three digits.

It has been a matter of debate how the three-fingered hand developed from its five-fingered ancestor. Each digit among the five was composed of a specific number of bones, or phalanges.

Palaeontologists have long argued that it is the first (corresponding to the thumb), second, and third fingers from that ancestral hand that survived through to modern birds, on grounds that the three fingers in later animals exhibit the correct number of phalanges.

However, developmental biologists have shown that bird embryos show growth of all five digits, but it is the first and fifth that later stop growing and are reabsorbed.

The remaining three bones fuse and form a vestigial "hand" hidden in the middle of a bird's wing.

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