Phylum [Mollusca] Linnaeus, 1758 - molluscs
   Class Gastropoda Cuvier, 1795 - snails and slugs
     Subclass Prosobranchia Milne-Edwards, 1848 - prosobranchs see Class Gastropoda Cuvier, 1795
       Order Archaeogastropoda Thiele, 1925 see Order Vetigastropoda Salvini-Plawen, 1980
         1 Suborder †Bellerophontina Ulrich & Scofield, 1897 see Superfamily Bellerophontoidea McCoy, 1852
         2 Suborder †Macluritina Cox & Knight, 1960 see Superfamily Macluritoidea Carpenter, 1861
         3 Suborder Pleurotomariina (Cox & Knight, 1960) see Superfamily Pleurotomarioidea Swainson, 1840
         4 Suborder Trochina (Cox & Knight, 1960) see Superfamily Trochoidea Rafinesque, 1815
         5 Suborder Neritopsina Cox, 1960 see Order Neritopsina Cox & Knight, 1960