Cephalopoda - Nautilida - Grypoceratidae
Alternative combination: Domatoceras bradyi
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 Penascoceras according to V. E. Ruzhentsev and V. N. Shimanskiy 1954
See also Miller and Unklesbay 1942 and Miller and Youngquist 1949
Sister taxon: Penascoceras northropi
Type specimen: MNA 811/G2.1517. Its type locality is Bottomless Pits, Walnut Canyon, which is in a Roadian shallow subtidal limestone in the Kaibab Formation of Arizona.
Ecology: nektobenthic carnivore
Average measurements (in mm): shell diameter 155.0
Distribution:
• Permian of United States (6: Arizona, New Mexico 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.