protomammal

Từ điển WordNet v3.1 - WordNet Dictionary

noun

probably warm-blooded;
considered direct ancestor of mammals
• Syn:
therapsid
• Hypernyms:
synapsid, synapsid reptile
• Hyponyms:
Chronoperates paradoxus, cynodont, dicynodont
• Member Holonyms:
Therapsida, order Therapsida