Tuesday, December 29, 2009
USA Today 2009 big discoveries
For a critter dead 65 million years, T. rex had a pretty good year as relatives turned up in study results almost weekly. In September, researchers led by Paul Sereno of theUniversity of Chicago reported discovery of Raptorex kriegsteini, a pocket-sized tyrannosaur from 125 million years ago. A peculiar horned tyrannosaur about 70 million years old, Alioramus altai, was announced in October. And in December, a team led by Sterling Nesbitt of theAmerican Museum of Natural History in New York unveiled Tawa hallae, a 6.5-foot-long precursor to T. rex from 215 million years ago.