Cephalopoda - Ceratitida - Ptychitidae
Full reference: E. T. Tozer. 1994. Canadian Triassic Ammonoid Faunas. Geological Survey of Canada Bulletin 467:1-663
Belongs to Ptychites according to E. A. Bischof and J. Lehmann 2020
See also Tozer 1994
Sister taxa: Ptychites besnosovi, Ptychites breunigi, Ptychites cognatus, Ptychites cultrata, Ptychites cylindroides, Ptychites densistriatus, Ptychites domatus, Ptychites dontianus, Ptychites durandii, Ptychites embreei, Ptychites eusomus, Ptychites evansi, Ptychites everesti, Ptychites evolvens, Ptychites gibbus, Ptychites globus, Ptychites gradinarui, Ptychites hamatus, Ptychites intermedius, Ptychites mahendra, Ptychites maximus, Ptychites miyagiensis, Ptychites nipponicus, Ptychites noricus, Ptychites oppeli, Ptychites opulentus, Ptychites posthumus, Ptychites progressus, Ptychites pseudoeuglyphus, Ptychites rectangulatus, Ptychites reductus, Ptychites rugifer, Ptychites sahadeva, Ptychites stachei, Ptychites stoliczkai, Ptychites sumitra, Ptychites tibetanus, Ptychites trochleaeformis, Ptychites uhligi, Ptychites vidura, Ptychites wrighti
Type specimen: GSC 70993. Its type locality is GSC 83873, northwest of Hook Lake, which is in a Pelsonian marine horizon in the Sulphur Mountain Formation of Canada.
Ecology: nektonic carnivore
Average measurements (in mm): shell diameter 42.7
Distribution:
• Triassic of Canada (3: British Columbia collections), United States (1: Nevada)
Total: 4 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.