V2EX brachiopod

Brachiopod

Definition / 释义

腕足动物:一种海洋无脊椎动物,外有两片壳,外形常像双壳类(如蛤蜊),但内部结构与取食方式不同;在古生代地层中十分常见,常作为化石出现。

Pronunciation / 发音

/brkipd/

Examples / 例句

Brachiopods live on the seafloor.
腕足动物生活在海底。

In the limestone layer, the geologist identified several brachiopod fossils that helped date the rock.
在那层石灰岩中,地质学家辨认出几枚腕足动物化石,从而帮助确定岩石年代。

Etymology / 词源

来自希腊语构词:**brachi(o)-**(“手臂、腕”)+ -pod(“脚”),原意接近“有臂足的动物”。这个名称指向它们用于滤食的“腕”(触手冠的一部分),而不是真正意义上的“脚”。

Related Words / 相关词汇

Literary Works / 文学作品

  • Charles Darwin, On the Origin of Species(《物种起源》;讨论生物分布与地质记录时常涉及化石类群,如腕足类)
  • Treatise on Invertebrate Paleontology(《无脊椎动物古生物学论著》;系统性介绍腕足动物等化石类群的经典参考书)
  • Richard Dawkins, The Ancestor’s Tale(《祖先的故事》;谈及演化历史与古生物时会提到包括腕足类在内的古老海洋生物)
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