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单词 ammonoid
释义

ammonoid

/ˈæmənɔɪd/
Palaeontology 【古生物】
1
an extinct cephalopod mollusc with a flat-coiled spiral shell, found commonly as a fossil in marine deposits from the Devonian to the Cretaceous periods
菊石。
1.1
Subclass Ammonoidea, class Cephalopoda: numerous families.
菊石目亚纲, 头足纲:众多科。见 AMMONITE, CERATITE, and GONIATITE.
of or relating to the ammonoids
(与)菊石(有关)的。
词源
mid 19th cent.: from modern Latin Ammonoidea, based on AMMON (see AMMONITE).
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更新时间:2025/2/12 12:22:59