Tyrannosaur design evolved at 'punk size'
Thursday, September 17, 2009 - 13:21
in Paleontology & Archaeology
A new dinosaur shows that tyrannosaur design evolved at 'punk size.' The creature, Raptorex, from NE China had evolved all the hallmark anatomical features of Tyrannosaurus rex at least 125 million years ago. A paper in the 17 September issue of Science Express titled 'Tyrannosaurid Skeletal Design First Evolved at Small Body Size' by Paul Sereno and colleagues describes the newly discovered species...