Thrinaxodon, cynodont, sculpture Oviraptor 4 m (8 feet) in

4 m (8 feet) in length

Hell Creek

Among the contemporaries of Pachycephalosaurus were Albertosaurus and Troodon

This is a fossil brittle star replica from the Devonian

Thrinaxodon, cynodont, sculpture Oviraptor 4 m (8 feet) inThrinaxodon (pronounced thrin AX ah DON) was a cat sized cynodont, an ancestor of the mammals, but not a mammal itself. Thrinaxodon was not a dinosaur. This therapsid lived during the late Triassic period, roughly 240 million years ago. Small holes in the snout bones suggest that it may have had whiskers, a mammalian characteristic. Its teeth were also similar to those of mammals. The skull was about 1. 5 inches long. Fossils have been found in South