Inostrancevia (name meaning "After Inostrantsev") is a genus of therapsids that originated during the Late Permian Era in what is now Asia and Africa. This predatory mammal-like reptile was known for being a deadly and effective hunter, having possessed the world's first true saber-teeth, which it used to deadly effect on its prey, which included anything from giant Labyrinthodont Amphibians up to the size of Scutosaur Pareiasaurs.
Thought to have been extinct for 248 million years, there are still some that remain alive on Primeval Island.