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protomammal

DEFINITIONS OF: protomammal

1

n probably warm-blooded; considered direct ancestor of mammals

Synonyms:
therapsid
Types:
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
dicynodont
a kind of therapsid
Type of:
synapsid, synapsid reptile
extinct reptile having a single pair of lateral temporal openings in the skull
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