therapsid
美 [θə'ræpsɪd]
英 [θɪ'ræpsɪd]
- 网络兽孔目；兽孔类；兽孔目爬行动物
复数：therapsids
n. | 1. an extinct reptile of an order that lived during the Permian and Triassic periods. Many therapsids are thought to be ancestors of the mammals. |
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