Cephalopoda - Orthocerida - Orthoceratidae

Belongs to Orthoceras according to Portlock 1843

Sister taxa: Orthoceras blakei, Orthoceras burgense, Orthoceras decrescens, Orthoceras elegantulum, Orthoceras expansum, Orthoceras gradatum, Orthoceras hulli, Orthoceras lepton, Orthoceras luhai, Orthoceras oehlerti, Orthoceras orientale, Orthoceras punjabiense, Orthoceras rachidium, Orthoceras shastense, Orthoceras siculum, Orthoceras spissiseptum, Orthoceras subtriangulare, Orthoceras vesiculosum, Orthoceras waageni, Orthoceros regularis

Type specimen: GSM 103561 (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