represent a classic example of predator and prey in a prehistoric ecosystem

resting and basking on the rocks

such as small reptiles

estrechamente relacionado con los iguanodóntidos

Inostrancevia alexandri Anteosaurus represent a classic example ofInostrancevia alexandri, an extinct species of gorgonopsid therapsid that inhabited Earth during the Permian period, approximately 270 to 260 million years ago. It was a large predator that ranked high in the food chain of its ecosystem. This therapsid belonged to the group of gorgonopsids, a family of carnivores that were characterized by their developed fangs and their appearance similar to that of reptiles, although they were more closely related