Mollusca Linnaeus, 1758 - molluscs see Phylum Mollusca Linnaeus, 1758
Count: 410f; †195f
   Gastropoda Cuvier, 1795 see Class Gastropoda Cuvier, 1795
  Count: [f†f] 410f; †172f
     Clade Caenogastropoda Cox, 1960 see Superorder Caenogastropoda Cox, 1960
    Count: [f†f] 126f; †65f
       Clade Sorbeoconcha Ponder & Lindberg, 1997 see Order Sorbeoconcha Ponder & Lindberg, 1997
      Count: [f†f] 114f; †39f
         Clade Hypsogastropoda Ponder & Lindberg, 1997 see Suborder Hypsogastropoda Ponder & Lindberg, 1997
        Count: [f†f] 95f; †23f
           Clade Littorinimorpha Pchelintsev, 1963 see Infraorder Littorinimorpha Pchelintsev, 1963
          Count: [f†f] 57f; †12f
             Superfamily Tonnoidea Suter, 1913 (1825)
            Count: [f] 6f
               1 Family Tonnidae Suter, 1913 (1825) - tuns
              Count: -
               2 Family Bursidae Thiele, 1925 - frog snails
              Count: -
               3 Family Laubierinidae Warén & Bouchet, 1990
              Count: -
               4 Family Personidae Gray, 1854
              Count: -
               5 Family Pisanianuridae Warén & Bouchet, 1990
              Count: -
               6 Family Ranellidae Gray, 1854 - tritons
              Count: -