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 lucinus, Prionolobus ophioneus, Prionolobus ovalis, Prionolobus plicatilis, Prionolobus plicatus, Prionolobus rotundatus, Prionolobus sequens, Prionolobus undatus, Prionolobus welteri

Type specimen: GSC 28118. Its type locality is GSC 56226, North Gully (MNG), which is in a Dienerian marine siliciclastic in the Toad Formation of Canada.

Ecology: nektonic carnivore

Average measurements (in mm): shell width 5.50, shell diameter 26.0