Phylum [Mollusca] Linnaeus, 1758 - molluscs
   Class Gastropoda Cuvier, 1795 - snails and slugs
     Subclass Prosobranchia Milne-Edwards, 1848 - prosobranchs see Class Gastropoda Cuvier, 1795
       Order Archaegastropoda see Order Archaeogastropoda Thiele, 1925
         1 Superfamily Pleurotomariacea see Superfamily Pleurotomarioidea Swainson, 1840
         2 Superfamily Patellacea see Superfamily Patelloidea Rafinesque, 1815
         3 Superfamily Fissurellacea Fleming, 1822 see Superfamily Fissurelloidea Fleming, 1822
         4 Superfamily Trochacea see Superfamily Trochoidea Rafinesque, 1815
         5 Superfamily Neritacea see Superfamily Neritoidea Rafinesque, 1815