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
               1 Tribe Planorbeae Zilch, 1959, orth. inval. see Tribe Planorbini Rafinesque, 1815
               2 Tribe Amerianneae Zilch, 1959, nom. nud., orth. inval. see Tribe Ameriannini Zilch, 1959, nom. nud.
               3 Tribe Physastreae Zilch, 1959, orth. inval. see Tribe Physastrini Starobogatov, 1958
               4 Tribe Camptocerateae Zilch, 1959, orth. inval. [monotypic] see Tribe Camptoceratini Dall, 1870
               5 Tribe Segmentineae Zilch, 1959, orth. inval. see Tribe Segmentinini Baker, 1945
               6 Tribe Drepanotremeae Zilch, 1959, orth. inval. see Tribe Drepanotrematini Zilch, 1959
               7 Tribe Biomphalarieae Zilch, 1959, orth. inval. see Tribe Biomphalariini Watson, 1954