| 单词 | arthrodire |
| 释义 | arthrodire/ˈɑːθrədʌɪə/Palaeontology noun A member of the extinct order Arthrodira of placoderm fishes, which are known from Devonian fossil deposits and have a bony head-shield that is articulated at the neck to another bony shield covering the upper part of the body. Origin |
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