托福單詞ammonoid什么意思-ammonoid詞組短語_例句_同義詞
2022-12-19 09:49:42 來源：中國教育在線
ammonoid意思
[古生]菊石
ammonoid詞組短語
ammonoid fauna:菊石動物群
ammonoid zone:菊石帶
ammonoid fossil:菊石化石
ammonoid facies:菊石相
ammonoid assemblage:菊石組合
ammonoid同義詞
n.
fossil
ammonoid例句
1.After each extinction,a rich variety of ammonoid species and body plans was replaced by a few free-floating types.
在每次物種滅絕之中，大量的菊石和體平面為少量浮游動物所替代。
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