| 词条 | Arctoptychites |
| 释义 |
| name = Arctoptychites | status = | fossil_range = Triassic | regnum = Animalia | phylum = Mollusca | classis = Cephalopoda | subclassis = Ammonoidea | ordo = Ceratitida | familia = Ptychitidae | genus = Arctoptychites | genus_authority = Archipov et al. 1974 }}Arctoptychites is a genus of extinct cephalopods belonging to the ceratitid family Ptychitidae, and related to such genera as Ptychites and Aristoptychites; all from the Triassic.[1] 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.[2] References1. ^Arctoptychites Paleodb {{Taxonbar|from=Q4787639}}{{Ceratitida-stub}}2. ^Treatise on Invertebrate Paleontology, Part L (1957),Mesozoic Ammonoidea p.L180. 4 : Ptychitaceae|Ceratitida genera|Triassic ammonites|Fossils of Svalbard |
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