Cephalopoda - Ceratitida - Proptychitidae

Full reference: W. Waagen. 1895. Fossils from the Ceratite Formation. Salt Range Fossils, Palaeontologia Indica, Series 13 2(1):1-323

Belongs to Prionolobus according to T. Brühwiler et al. 2010

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 sequens, Prionolobus undatus, Prionolobus welteri

Type specimen: Its type locality is Virgal, Ceratite Marls, Salt Range, which is in a Dienerian carbonate limestone in the Ceratite Marls Formation of Pakistan

Ecology: nektonic carnivore

Average measurements (in mm): shell width 10.7, shell diameter 48.1