Phylum Mollusca Linnaeus, 1758 - molluscs
   Class Gastropoda Cuvier, 1795 - snails and slugs
     Subclass Prosobranchia Milne-Edwards, 1848 - prosobranchs see Class Gastropoda Cuvier, 1795
       Order Caenogastropoda Cox, 1960 see Superorder Caenogastropoda Cox, 1960
         Suborder Architaenioglossa Haller, 1890
           Superfamily Cerithioidea Fleming, 1822
             01 Family Cerithiidae Fleming, 1822 - ceriths
             02 Family Dialidae Kay, 1979
             03 Family Thiaridae Gill, 1871 (1823)
             04 Family Pachychilidae Fischer & Crosse, 1892 [monotypic]
             05 Family Pseudomelaniidae Hoernes, 1884 [monotypic]
             06 Family Planaxidae Gray, 1850
             07 Family Melanopsidae Adams & Adams, 1854
             08 Family Modulidae Fischer, 1884 [monotypic]
             09 Family Litiopidae Gray, 1847
             10 Family Campanilidae Douvillé, 1904 [monotypic]
             11 Family Diastomatidae Cossmann, 1894
             12 Family Obtortionidae Thiele, 1925 see Family Scaliolidae Jousseaume, 1912
             13 Family Potamididae Adams & Adams, 1854 - potamids
             14 Family Batillariidae Thiele, 1929
             15 Family Cerithideidae Houbrick, 1988 see Family Potamididae Adams & Adams, 1854
             16 Family Pleuroceridae Fischer, 1885 (1863)
             17 Family Turritellidae Lovén, 1847 - turret snails
             18 Family Siliquariidae Anton, 1838 [monotypic]
             19 Family Trypanaxidae Gougerot & Le Renard, 1987
             20 Family Scaliolidae Jousseaume, 1912 [monotypic]
             21 Family Brachytrematidae Cossmann, 1906 [monotypic]