Cephalopoda - Ammonitida - Acanthoceratidae
Full reference: W. A. Cobban. 1988. Tarrantoceras Stephenson and related ammonoid genera from Cenomanian (Upper Cretaceous) rocks in Texas and the western interior of the United States. United States Geological Survey Professional Paper 1473:1-30
Belongs to Tarrantoceras according to W. A. Cobban 1988
Sister taxa: Tarrantoceras (Sumitomoceras), Tarrantoceras (Tarrantoceras), Tarrantoceras cuspidum, Tarrantoceras exile
Type specimen: USNM 400773, a shell. Its type locality is USGS Mesozoic D21850. Greybull, which is in a Cenomanian marine sandstone in the Cody Shale Formation of Wyoming.
Ecology: fast-moving nektonic carnivore
Distribution:
• Cretaceous of United States (3: South Dakota, Wyoming collections)
Total: 3 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.