ammonoid
英[æ'mɒnɔɪd]
美[æ'mɒnɔɪd]
- n. [古生物]菊石(已灭绝的头足动物)
详细释义
Noun:
-
one of the coiled chambered fossil shells of extinct mollusks
双语例句
- 1. After each extinction, a rich variety of ammonoid species and body plans was replaced by a few free-floating types.
- 在每次物种灭绝之中,大量的菊石和体平面为少量浮游动物所替代。
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- 2. After each extinction, a rich variety of ammonoid species and body plans was replaced by a few free-floating types.
- 在每次物种灭绝之中,大量的菊石和体平面为少量浮游动物所替代。
youdao
相关词汇
- ammonite [古生]菊石
【近义词】
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