Several groups of dinosaurs that were around the South Pole more than 100 million years ago, has left three-toed footprints of a moist, sandy soil. When they reached the sealed part of the cliffs, print, waited patiently for Anthony Martin at Emory University is the possibility of what is now Victoria, Australia. He found 24 perfect prints.
"It's a big deal, because they represent the largest number of polar dinosaur tracks found anywhere in the southern hemisphere," Martin wrote on his blog, The Grand Walk Chalk. "It's enough to make you want to dance happy."
The tracks are from sandstone blocks were transcripts of theropod - bipedal, mostly carnivorous dinosaur related to modern birds. The tracks showed that the theropod was three different sizes, ranging from the size of a chicken about the size of a crane.
Because of its size and the bones found at other sites in Victoria, scientists are pretty sure that they belong to a group known as theropods ornithomimosaurs, also known as the "ostrich mimics" because of their anatomy is similar to that of modern birds large degree of flight.
Sandstone slabs are printed along the rocky beach and the Otway National Park Milanesi distance west of Melbourne. SURF Books coastal cliffs, often broken slabs over the cliff. When tracks were made, Australia was connected to Antarctia and is much closer to the South Pole as part of the Gondwana paleogeography.
Martin left the road to the tracks between the tile pieces scattering on the beach when he noticed a trace fossil ripples and insect nests. "Ripples and burrows indicate the flood, which is the area most likely to find traces of polar dinosaurs," he explained.
Scientists can not determine the species of theropods songs. It 'possible that they were all the same species (family perhaps theropods), or could have been different types of travel in the same area at roughly the same time.
When are located between 115 to 105,000,000 years, Earth has been the experience of global warming, the average temperature of the zone at 68 degrees Fahrenheit (20 degrees Celsius) - about 10 F (6 C) above the current temperature there.
This would have a dramatic impact on the biology of the planet and ecology. "These tracks give us a direct indicator of how these dinosaurs were interacting with polar ecosystems during an important moment in geological history," Martin said in a statement.
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Posted by Dinosaurs World at 9:44 PM