| 单词 | cotylosaur |
| 释义 | cotylosaur/kəˈtʌɪləsɔː/Palaeontology noun A member of the extinct order Cotylosauria of primitive reptiles, chiefly of the Permian and Triassic periods, which were characterized by short limbs and a rather high, narrow, unfenestrated skull. Origin |
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