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单词 θ33302
释义
the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > class Cephalopoda > [noun] > order Tetrabranchiata > family Ammonitidae > member of > calcareous plate (1)
aptychus1877

A calcareous plate or pair of plates found in the terminal chamber of some ammonites.

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更新时间:2024/9/21 1:54:03