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词汇 euryapsid
释义

Definition of euryapsid in English:

euryapsid

nounˌjʊərɪˈapsɪdˌyo͝orēˈapsəd
  • A Mesozoic marine reptile of a group characterized by a single upper temporal opening in the skull, including the nothosaurs, plesiosaurs, and ichthyosaurs.

    调孔类海洋爬行动物

    Sometimes placed in a subclass Euryapsida, though this taxon is no longer widely recognized

    Example sentencesExamples
    • Turtles are outside Diapsida when euryapsids are not included, but diapsids when they are.
    • Turtles were seen as close relatives of sauropterygians (or even members of Sauropterygia) in the analyses including euryapsids; without euryapsids, those matrices support nondiapsid affinities for turtles.
    • These forms share the possession of a single upper temporal fenestra (the ‘euryapsid’ condition), and they were frequently classified together as members of Euryapsida.

Origin

From Greek eurus 'wide' + apsis, apsid- 'arch'.

Definition of euryapsid in US English:

euryapsid

nounˌyo͝orēˈapsəd
  • A Mesozoic marine reptile of a group characterized by a single upper temporal opening in the skull, including the nothosaurs, plesiosaurs, and ichthyosaurs.

    调孔类海洋爬行动物

    Sometimes placed in a subclass Euryapsida, though this taxon is no longer widely recognized

    Example sentencesExamples
    • These forms share the possession of a single upper temporal fenestra (the ‘euryapsid’ condition), and they were frequently classified together as members of Euryapsida.
    • Turtles are outside Diapsida when euryapsids are not included, but diapsids when they are.
    • Turtles were seen as close relatives of sauropterygians (or even members of Sauropterygia) in the analyses including euryapsids; without euryapsids, those matrices support nondiapsid affinities for turtles.

Origin

From Greek eurus ‘wide’ + apsis, apsid- ‘arch’.

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