Vertebrate Paleontology & Dinosaurs April 3, 2010

The evolutionary history of vertebrates began more than 500 million years ago (mya). In Romer Hall explore this history with fossils including the 42-foot long Kronosaurus from 153 mya, a plateosaurus from the upper Triassic (~210 mya), and the type specimen of a triceratops from the late Cretaceaous (~ 70 mya).