| Aristoptychites Temporal range: Anisian | |
|---|---|
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Cephalopoda |
| Subclass: | †Ammonoidea |
| Order: | †Ceratitida |
| Family: | †Ptychitidae |
| Genus: | †Aristoptychites Diener, 1916 |
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.
References
- Arkell, W.J.; Kummel, B.; Wright, C.W. (1957). Mesozoic Ammonoidea. Treatise on Invertebrate Paleontology, Part L, Mollusca 4. Lawrence, Kansas: Geological Society of America and University of Kansas Press.
- Aristoptychites Paleobiology Database, 6/8/12
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