pelecypods

pelecypods

美 　英

• 网络斧足类

例句

Remains of more modern corals, diverse pelecypods, sea urchins and ammonoids characterize the marine strata of the Mesozoic ERA.

中生代生物的特征是出现较现代的珊瑚，各种各样的瓣鳃，海胆和菊石。