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 Arthropoda Siebold, 1848 - arthropods
           Subphylum Crustacea Brünnich, 1772 - crustaceans see Superclass Crustacea Pennant, 1777
             Subclass Malacostraca Latreille, 1802 see Class Malacostraca Latreille, 1802
               Superorder Peracarida Calman, 1904
                 Order Isopoda Latreille, 1817 - isopods
                   Suborder Valvifera Sars, 1882
                     1 Family Amesopidae see Family Amesopodidae
                     2 Family Arcturidae Dana, 1849
                     3 Family Chaetilidae see Family Chaetiliidae Dana, 1849
                     4 Family Holognathidae G. Thomson, 1904
                     5 Family Idoteidae Samouelle, 1819
                     6 Family Pseudidotheidae Ohlin, 1901
                     7 Family Xenarcturidae E.M. Sheppard, 1957