Prestosuchus  cast skeleton shown in this image is a rauisuchian archosaur that is related to crocodiles. It existed in the Late Triassic...

This first dinosaur skeleton cast is of an Eoraptor lunensis . It was found in Ischigualasto National Park, Argentina, South America. Its ...

Image of a resin cast of an  Allosaurus fragilis claw. This dinosaur existed about 155-145 million years ago (late Jurassic Period - Kim...