Cephalopoda - Nautilida - Tainoceratidae
Full reference: A. K. Miller and A. G. Unklesbay. 1942. Permian nautiloids from western United States. Journal of Paleontology 16(6):719-738
Belongs to Tainoceras according to D. Korn and A. Ghaderi 2025
See also Miller and Unklesbay 1942 and Miller and Youngquist 1949
Sister taxa: Tainoceras abukumaense, Tainoceras admonens, Tainoceras balestense, Tainoceras bukkense, Tainoceras carinatum, Tainoceras cavatum, Tainoceras changlingpuense, Tainoceras clydense, Tainoceras collinsi, Tainoceras comptum, Tainoceras crassicostatum, Tainoceras debile, Tainoceras duttoni, Tainoceras gibbosum, Tainoceras guizhouense, Tainoceras hunanense, Tainoceras hystatum, Tainoceras kitakamiense, Tainoceras latecostatum, Tainoceras lateronodosum, Tainoceras luxaeterna, Tainoceras malsineri, Tainoceras marylandicum, Tainoceras mingshanense, Tainoceras monilifer, Tainoceras murrayi, Tainoceras nebrascense, Tainoceras nodocarinatum, Tainoceras noetlingi, Tainoceras occidentale, Tainoceras orientale, Tainoceras quadrangulum, Tainoceras rotundatum, Tainoceras sexlineatum, Tainoceras toulai, Tainoceras trautscholdi, Tainoceras trimuense, Tainoceras unitum, Tainoceras unklesbayi, Tainoceras vashutinense, Tainoceras wyomingense, Tainoceras zmajevatense
Type specimen: Grand Canyon NP Mus Fk-653. Its type locality is Hilltop, Grand Canyon, which is in a Kungurian shallow subtidal limestone in the Kaibab Formation of Arizona.
Ecology: nektobenthic carnivore
Average measurements (in mm): shell diameter 110.0
Distribution:
• Permian of United States (4: Arizona collections)
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.