研究人员发现,真足蛇有着极为简单的骨盆和笔直、细长的股骨。
Eupodophis had a simplistic pelvis and straight, slender femurs, the researchers found.
桡足动物任一种桡足亚纲的大量海洋或淡水甲壳纲小动物,身体细长,尾部分叉。
Any of numerous minute Marine and freshwater crustaceans of the subclass Copepoda, having an elongated body and a forked tail.
桡足动物任一种桡足亚纲的大量海洋或淡水甲壳纲小动物,身体细长,尾部分叉。
Any of numerous minute Marine and freshwater crustaceans of the subclass Copepoda, having an elongated body and a forked tail.
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