Kingdom Animalia Linnaeus, 1758 - animals
   Phylum Mollusca Linnaeus, 1758 - molluscs
     Subphylum Cyrtosoma Runnegar & Pojeta Jr., 1974 see Phylum Mollusca Linnaeus, 1758
       Class Gastropoda Cuvier, 1795 - snails and slugs
         ?Genus †Aldanella Vostokova, 1962
         Genus †Ceratopea Ulrich, 1911
         Genus †Radulichnus Voigt, 1977
         Genus Rhinoclavis Swainson, 1840
         1 Subclass Prosobranchia Milne-Edwards, 1848 - prosobranchs see Class Gastropoda Cuvier, 1795
         2 Subclass Opisthobranchia Milne-Edwards, 1848 - opisthobranchs see Order Opisthobranchia Milne-Edwards, 1848
         3 Subclass Pulmonata Cuvier, 1814 - land snails and slugs see Order Pulmonata Cuvier, 1814