Borissiakoceras orbiculatum Stephenson 1955 (ammonite)

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

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Specimen images are retrieved through the ePANDDA API.


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