| Noun | 1. | order Therapsida - extinct mammal-like reptiles found inhabiting all continents from the mid Permian to late Triassicanimal order - the order of animals subclass Synapsida, Synapsida - extinct reptiles of the Permian to Jurassic considered ancestral to mammals protomammal, therapsid - probably warm-blooded; considered direct ancestor of mammals Chronoperates, genus Chronoperates - a reptile genus of Therapsida Cynodontia, division Cynodontia - a division of the order Therapsida from the Triassic period comprising small carnivorous tetrapod reptiles often with mammal-like teeth Dicynodontia, division Dicynodontia - a division of Therapsida |