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
           Clade Littorinimorpha Pchelintsev, 1963 see Infraorder Littorinimorpha Pchelintsev, 1963
             Superfamily Rissooidea Gray, 1847
               01 Family Rissoidae Gray, 1847
               02 Family Amnicolidae Tryon, 1863
               03 Family Anabathridae Keen, 1971
               04 Family Assimineidae Adams & Adams, 1856
               05 Family Barleeiidae Gray, 1857
               06 Family Bithyniidae Gray, 1857
               07 Family Caecidae Gray, 1850 - caecids
               08 Family Calopiidae Ponder, 1999
               09 Family Cochliopidae Tryon, 1866
               10 Family Elachisinidae Ponder, 1985
               11 Family Emblandidae Ponder, 1985
               12 Family Epigridae Ponder, 1985
               13 Family Falsicingulidae Slavoshevskaya, 1975
               14 Family Helicostoidae Pruvot-Fol, 1937
               15 Family Hydrobiidae Stimpson, 1865
               16 Family Hydrococcidae Thiele, 1928
               17 Family Iravadiidae Thiele, 1928
               18 Family Lithoglyphidae Tryon, 1866
               19 Family †Mesocochliopidae Yu, 1987
               20 Family Moitessieriidae Bourguignat, 1863
               21 Family †Palaeorissoinidae Gründel & Kowalke, 2002
               22 Family Pomatiopsidae Stimpson, 1865
               23 Family Stenothyridae Tryon, 1866
               24 Family Tornidae Sacco, 1896 (1884)
               25 Family Truncatellidae Gray, 1840