living organisms see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Superkingdom Eukaryotae see Domain Eukaryota Chatton, 1925
     Kingdom Animalia Linnaeus, 1758 - animals
       Subkingdom Eumetazoa Butschli, 1910 see [unranked] Eumetazoa Bütschli, 1910
         Phylum Mollusca Linnaeus, 1758 - molluscs
           Class Gastropoda Cuvier, 1795 - snails and slugs
             Subclass Prosobranchia Milne-Edwards, 1848 - prosobranchs see Class Gastropoda Cuvier, 1795
               Order Mesogastropoda Thiele, 1925 - mesogastropods see [unranked] mesogastropods
                 Superfamily Cerithiacea Férussac, 1819 see Superfamily Cerithioidea Fleming, 1822
                   01 Family Thiaridae Gill, 1871 (1823)
                   02 Family Planaxidae Gray, 1850
                   03 Family Melanopsidae Adams & Adams, 1854
                   04 Family Modulidae Fischer, 1884
                   05 Family Cerithiidae Fleming, 1822 - ceriths
                   06 Family Campanilidae Douvillé, 1904
                   07 Family Diastomatidae Cossmann, 1894
                   08 Family Potamididae Adams & Adams, 1854 - potamids
                   09 Family Pleuroceridae Fischer, 1885 (1863)
                   10 Family Syrnolopsidae Bourguignat, 1890 see Tribe Syrnolopsini Bourguignat, 1890
                   11 ?Family Delavayidae Annandale, 1924 see Tribe Triculini Annandale, 1924
                   12 Family Cerithiopsidae Adams & Adams, 1853
                   13 Family Triforidae Jousseaume, 1884 see Family Triphoridae Gray, 1847
                   14 Family Turritellidae Lovén, 1847 - turret snails
                   15 Family Vermetidae Rafinesque, 1815 - worm snails