Citation: Kiel Steffen et Bandel Klaus, The Pugnellidae, a new stromboidean family (Gastropoda) from the Upper Cretaceous, Palaontologische Zeitschrift Palaontologische Zeitschrift (Print);Journal of Palaontologische Gesellschaft Scientific contributions to palaeontology, 73(1/2), 1999, pp. 47-58
Citation: Kiel Steffen et Bandel Klaus, The Cenomanian Gastropoda of the Kassenberg quarry in Mulheim (Germany, Late Cretaceous), Palaontologische Zeitschrift Palaontologische Zeitschrift (Print);Journal of Palaontologische Gesellschaft Scientific contributions to palaeontology, 78(1), 2004, pp. 103-126