| 单词 | 总鳍鱼 |
| 释义 | 〔lobefin〕Any of various mostly extinct bony fishes of the subclass Crossopterygii, of which the coelacanth is a living representative.总鳍鱼：内鼻孔亚纲的各种大多已灭绝了的硬骨鱼，腔棘鱼为其现存种类代表〔crossopterygian〕A member of the Crossopterygii, a group of bony fishes with paired, rounded fins that are extinct except for the coelacanths and are regarded as ancestors of amphibians and other terrestrial vertebrates.总鳍鱼：一种总鳍目鱼，长有成对的圆形鳍，除了空鳍鱼类的鱼之外现已全部灭绝，被认为是两栖纲动物和其它陆生脊椎动物的祖先 |
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