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 Copepoda H. Milne-Edwards, 1840 - copepods
               Order Calanoida Sars, 1903
                 Suborder Isokerandria see Superfamily Clausocalanoidea Giesbrecht, 1893
                   1 Family Diaixidae G.O. Sars, 1902
                   2 Family Mesaiokeratidae Matthews, 1961
                   3 Family Stephidae G.O. Sars, 1902
                   4 Family Tharybidae G.O. Sars, 1902
                   5 Family Platycopiidae G.O. Sars, 1911
                   6 Family Pseudocyclopiidae G.O. Sars, 1902