Cephalopoda - Nautilida - Liroceratidae
Alternative combination: Liroceras bicostatum
Full reference: M. Gordon. 1964. Carboniferous Cephalopods of Arkansas. United States Geological Survey Professional Paper 460:1-322
Belongs to Bistrialites according to S. Niko and R. H. Mapes 2017
See also Gordon 1964 and Niko and Mapes 2016
Sister taxon: Bistrialites bimembris
Type specimen: USNM 119705, a shell. Its type locality is Loc. 1. USGS 14369. Road cut on se side US 65, 0.8 km sw of Peyton Creek Bridge, which is in a Serpukhovian offshore grainstone/shale in the Imo Formation of Arkansas.
Ecology: nektobenthic carnivore
Average measurements (in mm): shell diameter 32.6
Distribution:
• Carboniferous of United States (18: Arkansas collections)
Total: 18 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.