Chondrichthyes - Hybodontiformes - Ptychodontidae

Full reference: L. Agassiz. 1837. Recherches Sur Les Poissons Fossiles. Tome III (livr. 8-9). Imprimérie de Petitpierre, Neuchatel viii-72

Belongs to Ptychodus according to L. Agassiz 1837

Sister taxa: Ptychodus altior, Ptychodus arcuatus, Ptychodus articulatus, Ptychodus belluccii, Ptychodus concentricus, Ptychodus decurrens, Ptychodus elevatus, Ptychodus latissimus, Ptychodus mahakalensis, Ptychodus mammillaris, Ptychodus marginalis, Ptychodus mortoni, Ptychodus multistriatus, Ptychodus oweni, Ptychodus paucisulcatus, Ptychodus polygyrus, Ptychodus rugosus, Ptychodus spectabilis, Ptychodus whipplei

Ecology: nektonic carnivore