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Wednesday, March 31, 2010
Velociraptor Dinosaur's cousin discovered
Scientists have found out a new species of Dinosaur that was closely related to the Velociraptor.
The 1.8m-long predator was a dromaeosaurid - a family of theropod dinosaurs from which modern birds come down.
The researchers found out its exquisitely well preserved skeleton in sediments dating from the Upper Cretaceous period in Inner Mongolia.
The Fossilised skeleton was in almost perfect condition - with entire claws and teeth - despite being between 145 and 65 million years old.
Its examination was directed by Xing Xu from the Chinese Academy of Sciences in Beijing.
He and his colleagues described several distinguishing features, particularly of its jaw and feet, that enabled them to recognize it as a dromaeosaurid - a name that means "running lizard".
It had, for example, what the researchers explained as "raptorial claws" on its feet.
The highly evolved predator, which has been named Linheraptor exquisitus, represents an entirely latest genus within that family.
"Linheraptor is alike Velociraptor in many features," wrote the scientists.
They positioned out, however, that it was not Velociraptor's closest relative within the dromaeosaurid family.
Labels: Dinosaur footprint, Dinosaur fossils, Dinosour cartoon, Dinosour family, Fossils
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Friday, December 11, 2009
Dinosaur fossil fills gaps in evolutionary knowledge
Scientists have unearthed the fossilised bones of a meat-eating dinosaur the size of a large dog which they believed could fill in the gaps about the early evolution and global migration of a group of animals that take over the land for 170 million years.
The dinosaur, called Tawa hallae, lived about 230 million years ago and was originate in a quarry in northern New Mexico. It hold anatomical features that link it with other dinosaurs living much further south in what is now South America. Researchers said that Tawa bear the idea that the dinosaur lineage evolved in the southern part of the supercontinent Pangea. Successive waves of migration from that region resulted in a diverse variety of dinosaurs spreading to other parts of the giant continent, which later on split into several separate continents.
Labels: Dinosaur footprint, Dinosaur fossils, Dinosour cartoon, Fossils
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