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单词 θ33236
释义
the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > class Cephalopoda > [noun] > member of > parts of > anterior prolongation of fossil (1)
pro-ostracum1864

An anterior prolongation of the guard or rostrum of a belemnite or other fossil cephalopod, usually long and flat.

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更新时间:2026/6/3 3:42:19