英语单词查询
ammonoid
「ammonoid」的意思
[古生] 菊石
n.菊石(已灭绝的头足动物)
「ammonoid」的用法
ammonoid ammonoid 是一种已灭绝的软体动物，属于头足纲。它们生活在海洋中，具有螺旋形的外壳，类似于现代的乌贼和章鱼。 - 学习古生物学的学生和对海洋生物感兴趣的人。
「ammonoid」的例句
Ammonoids were the dominant marine invertebrates during the Mesozoic Era.
在中生代， ammonoids 是海洋中占主导地位的无脊椎动物。
The study of ammonoids has provided valuable insights into the evolution of cephalopods.
研究 ammonoids 已经为头足类的进化提供了宝贵的见解。
Fossilized ammonoid shells are often found in marine sedimentary rocks.
化石化的 ammonoid 外壳经常在海相沉积岩中发现。
Ammonoids had a wide variety of shell shapes and sizes.
ammonoids 有各种形状和大小的外壳。
The extinction of ammonoids marked a significant turning point in Earth's history.
ammonoids 的灭绝标志着地球历史上的一个重要转折点。
Scientists use the study of ammonoid fossils to reconstruct ancient ocean environments.
科学家通过研究 ammonoid 化石来重建古代海洋环境。
Ammonoids played a crucial role in the food web of prehistoric oceans.
ammonoids 在史前海洋的食物网中扮演了关键角色。
The discovery of new ammonoid species continues to expand our understanding of prehistoric life.
新 ammnooid 种类的发现继续扩大我们对史前生命的理解。
Ammonoids are an important part of the fossil record and provide valuable information about Earth's past.
ammnooid 是化石记录的重要组成部分，提供了关于地球过去的重要信息。