| 单词 | therapsid |
| 释义 | therapsid (once / 2363863 pages) n WORD FAMILY therapsid: therapsids USAGE EXAMPLESMy research focuses on a group of therapsids called dicynodonts. New York Times(Apr 17, 2012) Skull of the therapsid Lycaenops on display at the Field Museum of Natural History. New York Times(Apr 12, 2012) Prior to 251 million years ago, the dominant, large animals on land were the therapsids, early forerunners to mammals. Science Magazine(Feb 01, 2012) n probably warm-blooded; considered direct ancestor of mammals Syn|Hypo|Hyper protomammal 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) cynodontsmall carnivorous reptiles dicynodonta kind of therapsid synapsid, synapsid reptile extinct reptile having a single pair of lateral temporal openings in the skull |
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