Gastropoda - Ptychomphaloidea - Ptychomphalidae

Alternative combination: Pleurotomaria (Baylea) kirillowensis

Full reference: B. Licharew. 1913. Die Fauna der permischen Ablagerungen aus der Umgebung der Stadt Kirillow im Gouvernement Novgorod. Trudy Geologicheskii Komitet (Mémoires Comité géologique), New Series 85

Belongs to Pleurotomaria (Ptychomphalus) according to B. Licharew 1913

Sister taxa: Ptychomphalus benedianus, Ptychomphalus conimorphus, Ptychomphalus neumayri, Ptychomphalus palaeopsis, Ptychomphalus protei, Ptychomphalus tieni

Average measurements (in mm): shell width 10.0