''Arctoptychites'' is a genus of extinct cephalopods belonging to the
ceratitid family Ptychitidae, and related to such genera as ''
Ptychites
''Ptychites'' is an extinct genus of cephalopods belonging to the family Ptychitidae. These nektonic carnivores lived during the Triassic period, from Anisian to Ladinian age.
Species
* ''Ptychites besnosovi'' Shevyrev 1995
* ''Ptychites densist ...
'' and ''
Aristoptychites''; all from the Triassic.
The Ptychitidae, to which ''Arctoptychites'' belongs, is a family of ceratitid ammonites (''sensu lato'') with ammonitic sutures and variably subglobular to compressed, ribbed or smooth, generally evolute shells.
[Treatise on Invertebrate Paleontology, Part L (1957),Mesozoic Ammonoidea p.L180.]
References
Ptychitaceae
Ceratitida genera
Triassic ammonites
Fossils of Svalbard
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