Cephalopoda - Nautilida - Grypoceratidae
Alternative combinations: Stearoceras sanandreasense, Titanoceras sanandreasense
Full reference: A. K. Miller, C. O. Dunbar, and G. E. Condra. 1933. The nautiloid cephalopods of the Pennsylvanian system in the mid-continent region. Nebraska Geololgical Survey Bulletin 9:1-240
Belongs to Parapenascoceras according to V. E. Ruzhentsev and V. N. Shimanskiy 1954
See also Clifton 1942, Miller et al. 1933, Miller and Unklesbay 1942 and Miller and Youngquist 1949
Sister taxa: Parapenascoceras aberrans, Parapenascoceras rotundatum
Type specimen: Its type locality is Penasco Valley, Highway 82, which is in a Roadian shallow subtidal limestone in the San Andres Formation of New Mexico
Ecology: nektobenthic carnivore
Distribution:
• Permian of United States (9: Arizona, New Mexico, Texas collections)
Total: 9 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.