Cephalopoda - Nautilida - Domatoceratidae
Alternative combination: Penascoceras 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 Domatoceras according to P. L. Sealey and S. G. Lucas 2025
See also Miller and Unklesbay 1942, Miller and Youngquist 1949 and Ruzhentsev and Shimanskiy 1954
Sister taxa: Domatoceras atypicum, Domatoceras bashkiricum, Domatoceras canonium, Domatoceras collinsvillense, Domatoceras convergens, Domatoceras elegantulum, Domatoceras floweri, Domatoceras gigas, Domatoceras guangxiense, Domatoceras hexagonum, Domatoceras highlandense, Domatoceras inflatum, Domatoceras inostranzewi, Domatoceras jiangxiense, Domatoceras latum, Domatoceras magister, Domatoceras mattoonense, Domatoceras mosquense, Domatoceras multituberculatum, Domatoceras myloide, Domatoceras ocomphalum, Domatoceras ogatsuense, Domatoceras parallelum, Domatoceras planotergatum, Domatoceras podolskense, Domatoceras sterlitamakense, Domatoceras texanum, Domatoceras tulense, Domatoceras walteri, Domatoceras wortheni, Pseudometacoceras grypoceroides
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 112.3
Distribution:
• Permian of United States (10: Arizona, New Mexico collections)
Total: 10 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.