Cephalopoda - Nautilida - Grypoceratidae
Full reference: M. Gordon. 1964. Carboniferous Cephalopods of Arkansas. United States Geological Survey Professional Paper 460:1-322
Belongs to Stearoceras according to M. Gordon 1964
Sister taxa: Stearoceras conchiferum, Stearoceras gibbosum, Stearoceras hesperium, Stearoceras immane, Stearoceras involutum, Stearoceras militarium, Stearoceras phosphoriense, Stearoceras punjabicum, Stearoceras simplex, Stearoceras sublaeve
Type specimen: LSJU 5590, a shell. Its type locality is Conway County, south of Morrilton, which is in a Bashkirian marine siliciclastic in the Atoka Formation of Arkansas.
Ecology: nektobenthic carnivore
Average measurements (in mm): shell diameter 70.0
Distribution:
• Carboniferous of United States (2: Arkansas collections)
Total: 2 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.