Mollusca Linnaeus, 1758 - molluscs see Phylum Mollusca Linnaeus, 1758
   Gastropoda Cuvier, 1795 see Class Gastropoda Cuvier, 1795
     Clade Caenogastropoda Cox, 1960 see Superorder Caenogastropoda Cox, 1960
       Clade Sorbeoconcha Ponder & Lindberg, 1997 see Order Sorbeoconcha Ponder & Lindberg, 1997
         Clade Hypsogastropoda Ponder & Lindberg, 1997 see Suborder Hypsogastropoda Ponder & Lindberg, 1997
           1 Family †Coelostylinidae Cossmann, 1908, incertae sedis
           2 Family †Maturifusidae Gründel, 2001, incertae sedis
           3 Family †Pommerozygiidae Gründel, 1999, incertae sedis
           4 Family †Settsassiidae Bandel, 1992, incertae sedis
           5 Clade Littorinimorpha Pchelintsev, 1963 see Infraorder Littorinimorpha Pchelintsev, 1963
           6 "Group" Ptenoglossa Gray, 1853 see Infraorder Ptenoglossa Gray, 1853
           7 Clade Neogastropoda Wenz, 1938 see Infraorder Neogastropoda Wenz, 1938