Cephalopoda - Ceratitida - Ptychitidae
Full reference: E. A. Bischof and J. Lehmann. 2020. Ontogenetic analysis of Anisian (Middle Triassic) ptychitid ammonoids from Nevada, USA. Journal of Paleontology 94:829-851
Belongs to Ptychites according to E. A. Bischof and J. Lehmann 2020
Sister taxa: Ptychites besnosovi, Ptychites breunigi, Ptychites cognatus, Ptychites cultrata, Ptychites cylindroides, Ptychites densistriatus, Ptychites domatus, Ptychites dontianus, Ptychites durandii, Ptychites eusomus, Ptychites evansi, Ptychites everesti, Ptychites evolvens, Ptychites gibbus, Ptychites globus, Ptychites gradinarui, Ptychites guloensis, 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: GSUB C9453. Its type locality is MUC2175, Muller Canyon, Augusta Mountains, which is in an Illyrian marine horizon in the Favret Formation of Nevada.
Ecology: nektonic carnivore
Average measurements (in mm): shell diameter 15.3
Distribution:
• Triassic of United States (6: Nevada collections)
Total: 6 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.