The earliest known armored dinosaur did not just carry a few defensive plates, it bristled with spikes so extreme that its ...

How fast were dinosaurs? If we're talking medium-sized theropods: very. That's according to a new fossil discovery that has become the fastest theropod trackway ever documented from the Cretaceous. By ...

Paleontologists have uncovered the oldest known dinosaur footprints from Chile and the western margin of the ancient ...

Fossils of Duonychus unearthed in Gobi Desert of Mongolia It had two fingers on each hand, with large curved claws It is a member of the therizinosaur dinosaur group March 25 (Reuters) - Fossils ...

Tenontosaurus fossils found in West Texas, the southernmost record of the dinosaur and a key to the Early Cretaceous.