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单词 synapsid
释义

synapsid

/saɪˈnæpsɪd/
noun
1
a fossil reptile of a Permian and Triassic group, the members of which show increasingly mammalian characteristics and include the ancestors of mammals
下孔亚纲的爬行动物。亦称MAMMAL-LIKE REPTILE.
1.1
Subclass Synapsida; includes the pelycosaurs and the therapsids.
下孔亚纲; 包括盘龙目和兽孔。
词源
early 20th cent.: from modern Latin Synapsida, from Greek sun- 'together' + apsis, apsid- 'arch'.
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更新时间:2025/3/13 21:25:08