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aptychus

A shelly plate found in the terminal chambers of ammonite shells. Some authors consider them to be jaws; others, opercula.

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  • ส่วนหนึ่งของคำพูด: noun
  • อุตสาหกรรม/ขอบเขต: Language
  • Category: Dictionaries
  • Company: MICRA Inc.

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  • spencer12
  • (Germany)

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