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 Opisthobranchia Milne-Edwards, 1848 - opisthobranchs see Order Opisthobranchia Milne-Edwards, 1848
               Order Nudibranchia Cuvier, 1814 - "true" nudibranchs
                 Suborder Doridoidea Rafinesque, 1815 see Suborder Doridina Odhner, 1934
                   Superfamily Eudoridacea Boss, 1982, nom. inval., orth. inval. see Superfamily Eudoridoidea Vaught, 1989, nom. inval.
                     01 Family Hexabranchidae Bergh, 1891
                     02 Family Chromodorididae Bergh, 1891, nom. protect.
                     03 Family Actinocyclidae O'Donoghue, 1929
                     04 Family Miamiridae Bergh, 1891 see Family Chromodorididae Bergh, 1891, nom. protect.
                     05 Family Aldisidae Odhner, 1939 see Family Dorididae Rafinesque, 1815
                     06 Family Rostangidae Pruvot-Fol, 1951 see Family Discodorididae Bergh, 1891
                     07 Family Dorididae Rafinesque, 1815
                     08 Family Archidorididae Bergh, 1891 see Family Dorididae Rafinesque, 1815
                     09 Family Geitodorididae Odhner, 1968 see Family Discodorididae Bergh, 1891
                     10 Family Homoiodorididae Odhner, 1926 see Family Dorididae Rafinesque, 1815
                     11 Family Baptodorididae Odhner, 1926 see Family Discodorididae Bergh, 1891
                     12 Family Discodorididae Bergh, 1891
                     13 Family Kentrodorididae Bergh, 1891 see Family Discodorididae Bergh, 1891
                     14 Family Halgerdidae Odhner, 1926 see Family Discodorididae Bergh, 1891
                     15 Family Platydorididae Bergh, 1891 see Family Discodorididae Bergh, 1891