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silurian

/saɪˈlʊə.ri.ən/

翻译: 地质年代中的一个时期,约在4.25亿至4.05亿年前,以最早出现呼吸空气的动物而闻名。

1 个条目

noun

/saɪˈlʊə.ri.ən/C2formalscientific
  • zh地质年代中的一个时期,约在4.25亿至4.05亿年前,以最早出现呼吸空气的动物而闻名。

A proper noun referring to a geological period from approximately 425 to 405 million years ago, known for the emergence of the first air-breathing animals.

不可数 · 专有名词

  1. Geological periodC1formalscientific

    The third period of the Paleozoic Era, spanning from about 443.8 to 419.2 million years ago, characterized by the first appearance of land plants and air-breathing animals.

    zh志留纪

    • The Silurian period saw the emergence of the first vascular plants.
    • Fossils from the Silurian era include early jawless fish.
    • During the Silurian, the first air-breathing arthropods appeared on land.
词形
  • silurians plural form
  • silurians' possessive plural form
  • silurian's possessive singular form