†Borissiakoceras orbiculatum Stephenson 1955 (ammonite)
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Cephalopoda - Ammonitida - Binneyitidae
Belongs to Borissiakoceras according to W. J. Kennedy and W. A. Cobban 1990
See also Kennedy and Cobban 1990
Sister taxa: Borissiakoceras ashurkoffae, Borissiakoceras inconstans, Borissiakoceras reymenti, Borissjakoceras rosenkrantzi
Type specimen: USNM 108832, a shell
Ecology: fast-moving nektonic carnivore
Distribution:
• Cretaceous of United States (6: Arizona, Montana, Texas, Wyoming collections)
Total: 6 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
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