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osteostracan

/ˌɒstiːəʊˈstrækən/

翻译: 已灭绝的泥盆纪无颌鱼类,头胸部具有骨质甲片。属于甲胄鱼纲(骨甲鱼类)。

1 个条目

noun

/ˌɒstiːəʊˈstrækən/C2formalscientific
  • zh已灭绝的泥盆纪无颌鱼类,头胸部具有骨质甲片。属于甲胄鱼纲(骨甲鱼类)。

An extinct group of jawless fish from the Devonian period, characterized by a bony armored head and body.

  1. Extinct armored fishC2formalscientific

    An extinct group of jawless fish from the Devonian period, characterized by a bony head shield.

    zh骨甲鱼

    • The osteostracan fossils were discovered in ancient riverbeds.
    • Scientists study osteostracans to understand early vertebrate evolution.
    • The bony head shield of the osteostracan provided protection from predators.

    同义词cephalaspid

词形
  • osteostracans plural form
  • osteostracans' possessive plural form
  • osteostracan's possessive singular form