ammonites
Ptychomphalus benedianus de Koninck 1883 (snail)

Gastropoda - Ptychomphaloidea - Ptychomphalidae

Full reference: L. G. de Koninck. 1883. Faune du calcaire carbonifère de la Belgique, 4e partie, Gastéropodes (suite en fin). Musée Royale d’Historie Naturelle Belgique Annales, Série Paléontoloque 8:1-240

Belongs to Ptychomphalus according to P. J. Wagner 2011

Sister taxa: Pleurotomaria (Ptychomphalus) kirillowensis, Ptychomphalus conimorphus, Ptychomphalus neumayri, Ptychomphalus palaeopsis, Ptychomphalus protei, Ptychomphalus tieni

Ecology: epifaunal grazer