Kingdom Animalia Class Cephalopoda Order Ceratitida Rank Genus | Phylum Mollusca Subclass Ammonoidea Superfamily Ptychitaceae | |
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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 rounde. Suture curved, subammonitic; more closely resembles that of Flexoptychites or Discoptychites than of other ptychitids.
References
Aristoptychites Wikipedia(Text) CC BY-SA