Cephalopoda - Orthocerida - Proteoceratidae

Alternative combination: Orthoceras gracile

Belongs to Gorbyoceras according to D. H. Evans 1993

Sister taxa: Gorbyoceras clathroannulatum, Gorbyoceras gorbyi, Gorbyoceras hammelli, Gorbyoceras tetreauense, Gorbyoceras textumaraneum

Type specimen: GSM 104393 (lectotype), a shell. Its type locality is Killey Bridge Fm. locality 1, NE of Pomeroy, which is in a Richmondian offshore mudstone/siltstone in the Killey Bridge Formation of the United Kingdom.

Ecology: nektonic carnivore