Phylum Mollusca Linnaeus, 1758 - molluscs
   Class Gastropoda Cuvier, 1795 - snails and slugs
     Subclass Divasibranchia Minichev & Starobogatov, 1975
       Order Basommatophora Keferstein, 1865 see Suborder Basommatophora Keferstein, in Bronn, 1864
         Superfamily Planorbioidea Vaught, 1989, orth. inval. see Superfamily Planorboidea Rafinesque, 1815
           Family Planorbidae Rafinesque, 1815 - planorbids
             Subfamily Planorbinae Rafinesque, 1815
               Tribe Planorbeae Zilch, 1959, orth. inval. see Tribe Planorbini Rafinesque, 1815
                 Genus Choanomphalus Gerstfeldt, 1859
                   1 Subgenus Achoanomphalus Lindholm, 1909
                   2 Subgenus Anomphalodes Tomlin, 1929
                   3 Subgenus Antichoanomphalus Bekman & Starobogatov, 1975
                   4 Subgenus Baicaloplanorbis Bekman & Starobogatov, 1975
                   5 Subgenus Biangulatus Dybowski & Grochmalicki, 1925
                   6 Subgenus Kozhovisulcifer Bekman & Starobogatov, 1975
                   7 Subgenus Omphalocrypta Tomlin, 1929
                   8 Subgenus Sulcifer Lindholm, 1909