strong hind limbs

It preceded the Dinosaurs by about 50 MY and belonged to a totally different reptilian lineage

Scale 1:35 - 227 mm large

It was a member of a group known as therapsids

and reptiles

Dunkleosteus terrelli Protoceratops strong hind limbsDunkleosteus terrelli was a species of arthrodirous placoderm fish that existed in the late Devonian period, from about 380 to 360 million years ago, in the Frasnian and Famenian. Contrary to previous estimates, recent research has shown that Dunkleosteus terrelli did not reach the enormous dimensions previously attributed. Instead of 10 meters in length, this armored fish is now believed to have been of a more moderate size, reaching approximately 3.