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 Heterarthrandria see Order Calanoida Sars, 1903
                   Family Temoridae Giesbrecht, 1893
                   Family Metridiidae Sars, 1902, nom. illeg. see Family Metridinidae G.O. Sars, 1902, nom. emend.
                   Family Centropagidae Giesbrecht, 1893
                   Family Diaptomidae Baird, 1850
                   Family Pseudodiaptomidae G.O. Sars, 1902
                   Family Lucicutiidae G.O. Sars, 1902
                   Family Heterorhabdidae G.O. Sars, 1902
                   Family Augaptilidae G.O. Sars, 1905
                   Family Discoidae Gordeeva, 1975
                   Family Arietellidae G.O. Sars, 1902
                   Family Epacteriscidae Fosshagen, 1973
                   Family Pseudocyclopidae Giesbrecht, 1893
                   Family Ridgewayiidae M.S. Wilson, 1958
                   Family Candaciidae Giesbrecht, 1893
                   Family Pontellidae Dana, 1852
                   Family Parapontellidae Giesbrecht, 1893
                   Family Bathypontiidae Brodsky, 1950
                   Family Acartiidae G.O. Sars, 1903
                   Family Tortanidae G.O. Sars, 1902
                   Family Phyllopidae see Family Phyllopodidae Brodsky, 1950, nom. illeg.
                     Genus Phyllopus Brady, 1883, nom. illeg. see Genus Nullosetigera Soh et al., 1999