Cephalopoda - Ceratitida - Proptychitidae

Full reference: E. T. Tozer. 1994. Canadian Triassic Ammonoid Faunas. Geological Survey of Canada Bulletin 467:1-663

Belongs to Prionolobus according to E. T. Tozer 1994

Sister taxa: Meekoceras (Prionolobus) waageni, Prionolobus atavus, Prionolobus buchianus, Prionolobus compressus, Prionolobus hubeiensis, Prionolobus impressus, Prionolobus konincki, Prionolobus lucinus, Prionolobus ophioneus, Prionolobus ovalis, Prionolobus plicatilis, Prionolobus plicatus, Prionolobus rotundatus, Prionolobus sequens, Prionolobus undatus

Type specimen: GSC 28111. Its type locality is GSC 56182, Chowade River (UCR), which is in a Dienerian marine siliciclastic in the Toad Formation of Canada.

Ecology: nektonic carnivore

Average measurements (in mm): shell width 12.1, shell diameter 59.7