Gorgonopsids were huge therapsids(mammal-like reptiles)that lived in the late Permian and early Triassic periods.


They were more closely related to mammals than reptiles, despite the name. They were probably inactive ambush predators; waiting for their prey to come to them rather than hunting for it. Nothing would ever rival them except the big dinosaurs of the Jurassic and Cretaceous periods. In fact, they probably became extinct because they were outnumbered, outrunned, and outwitted by the dinosaurs!

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