ammonoids

ammonoids

美 　英

• 网络菊石；菊石类

词形变化

复数：ammonoids  

英汉解释

n.	1. an extinct cephalopod mollusk with a partitioned shell

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。