Cephalopoda - Tarphycerida - Tarphyceratidae

Alternative combinations: Campbelloceras rotundatum, Eurystomites rotundus

Belongs to Campbelloceras according to Ulrich et al. 1942

Sister taxa: Campbelloceras brevicameratum, Campbelloceras hyatti, Campbelloceras mcgerriglei, Campbelloceras virginianus

Ecology: fast-moving nektobenthic carnivore