Onchopristis numidus Nothosaurus Proterosuchus fergusi es considerado uno

Proterosuchus fergusi es considerado uno de los arcosauriformes más basales

Although fossils have been found in Oklahoma

suggesting an evolution toward more active and mobile forms

specifically in what is now North America

Tenía una longitud de aproximadamente 2 metros y una altura en la cadera de alrededor de 0

Onchopristis numidus Nothosaurus Proterosuchus fergusi es considerado unoOnchopristis numidus was a cartilaginous fish that lived during the Cretaceous Period , about 100 million years ago, in the rivers and deltas that today correspond to North Africa and other regions of the ancient supercontinent Gondwana. At first glance, it would have resembled today's sawfish , with an elongated body and a "saw" shaped snout that made it unmistakable. That snout, technically called a rostrum , was covered in a row of large, needle