Phylum Mollusca Linnaeus, 1758 - molluscs
Status: extant
   Class Gastropoda Cuvier, 1795 - snails and slugs
  Status: extant
     Subclass Divasibranchia Minichev & Starobogatov, 1975
    Status: extant
       Order Stylommatophora Schmidt, 1855 see Infraorder Stylommatophora Schmidt, 1855
      Status: extant
         (Helicid Sigmurethra)
        Status: extant
           Superfamily Sagdoidea Pilsbry, 1895 [monotypic]
          Status: extant
             Family Sagdidae Pilsbry, 1895
            Status: extant
               Subfamily Sagdinae Pilsbry, 1895
              Status: extant
                 Genus Odontosagda Martens, 1860
                Status: extant