| 单词 | Chronoperates paradoxus |
| 释义 | Chronoperates paradoxus (extremely rare) n WORD FAMILY Chronoperates paradoxus n shrew-sized protomammal from the Alberta region of Canada; from about 55 million years ago (much more recent than other mammal-like reptiles) Hyper protomammal, therapsid probably warm-blooded; considered direct ancestor of mammals |
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