Mollusca Linnaeus, 1758 - molluscs see Phylum Mollusca Linnaeus, 1758
   Gastropoda Cuvier, 1795 see Class Gastropoda Cuvier, 1795
     Clade Heterobranchia Burmeister, 1837 see Superorder Heterobranchia Burmeister, 1837
       Informal Group Pulmonata Cuvier, 1814 see Order Pulmonata Cuvier, 1814
         Clade Eupulmonata Haszprunar & Huber, 1990 see Order Eupulmonata Haszprunar & Huber, 1990
           Clade Stylommatophora Schmidt, 1855 see Suborder Stylommatophora Schmidt, 1855
             Informal Group Sigmurethra Pilsbry, 1900
               "Limacoid clade"
                 Superfamily Gastrodontoidea Tryon, 1866
                   1 Family Gastrodontidae Tryon, 1866
                   2 Family Chronidae Thiele, 1931
                   3 Family Euconulidae Baker, 1928
                   4 Family Oxychilidae Hesse, 1927 (1879)
                   5 Family Pristilomatidae Cockerell, 1891
                   6 Family Trochomorphidae Möllendorff, 1890
                   7 ?Subfamily †Archaeozonitinae Pfeffer, 1930
                   8 ?Subfamily †Grandipatulinae Pfeffer, 1930
                   9 ?Subfamily †Palaeoxestininae Pfeffer, 1930