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crossopterygian

/ˌkrɒs.ɒp.təˈrɪdʒ.i.ən/

翻译: 指肉鳍鱼纲(Crossopterygii)中的任一鱼类,多数种类仅以化石形式为人所知,现生代表为矛尾鱼(腔棘鱼)。

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noun

/ˌkrɒs.ɒp.təˈrɪdʒ.i.ən/C2formalscientific
  • zh指肉鳍鱼纲(Crossopterygii)中的任一鱼类,多数种类仅以化石形式为人所知,现生代表为矛尾鱼(腔棘鱼)。

A noun referring to any fish of the order Crossopterygii, most of which are known only in fossil form.

  1. Lobe-finned fishC2formalscientific

    Any fish of the order Crossopterygii, characterized by fleshy, lobed fins; most species are known only from fossils, but they are considered ancestors of tetrapods.

    zh肉鳍鱼

    • The crossopterygian is a key group in understanding the evolution of land vertebrates.
    • Fossils of crossopterygians have been found in Devonian rock formations.
    • Unlike modern fish, the crossopterygian had a unique skeletal structure in its fins.

    同义词lobe-finned fish

词形
  • crossopterygians plural form
  • crossopterygians' possessive plural form
  • crossopterygian's possessive singular form