Top dinosaur discoveries of 2010
Published on January 3rd, 2011 | by Admin1
There is much that remains unknown about the origin and early evolution of dinosaurs, but several discoveries announced this year have helped to fill in the early history of dinosaurs and their close relatives. Tracks made by the precursors of dinosaurs – the dinosauromorphs – found in the 249-million-year-old rock of Poland suggest that the ancestors and close relatives of the first dinosaurs originated not long after the great Permian mass extinction 251 million years ago. Creatures of this antiquity can be tricky to identify. Azendohsaurus, once thought to be an early dinosaur, was reclassified this year as being only a distant cousin, and the newly-described creature Asilisaurus was somewhat dinosaur-like but not a dinosaur itself.