the•rap•sid
We found 2 definitions of therapsid from 2 different sources.
NounPlural: therapsids |
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therapsid - probably warm-blooded; considered direct ancestor of mammals | ||
protomammal | ||
synapsid, synapsid reptile extinct reptile having a single pair of lateral temporal openings in the skull | ||
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) | ||
cynodont small carnivorous reptiles |