Phylum Mollusca Linnaeus, 1758 - molluscs
   Class Gastropoda Cuvier, 1795 - snails and slugs
     Subclass Divasibranchia Minichev & Starobogatov, 1975
       Order Stylommatophora Schmidt, 1855 see Infraorder Stylommatophora Schmidt, 1855
         (Helicid Sigmurethra)
           Superfamily Sagdoidea Pilsbry, 1895 [monotypic]
             Family Sagdidae Pilsbry, 1895
               Subfamily Platysuccineinae Baker, 1940 [monotypic]
                 1 Genus Platysuccinea Ancey, 1881