| Noun | 1. | genus Chronoperates - a reptile genus of Therapsida reptile genus - a genus of reptiles order Therapsida, Therapsida - extinct mammal-like reptiles found inhabiting all continents from the mid Permian to late Triassic Chronoperates paradoxus - shrew-sized protomammal from the Alberta region of Canada; from about 55 million years ago (much more recent than other mammal-like reptiles) |