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Aristoptychites
Genus of molluscs (fossil) From Wikipedia, the free encyclopedia
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Aristoptychites is an extinct genus of cephalopod from the Anisian stage of the Middle Triassic belonging to the ammonoid subclass.
Shell involute, whorls strongly embraced, venter acutely rounded. Suture curved, subammonitic; more closely resembles that of Flexoptychites or Discoptychites than of other ptychitids.
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