[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Crustacea (Brünnich, 1772) - crustaceans see Superclass Crustacea Pennant, 1777
     Subclass Copepoda H. Milne-Edwards, 1840 - copepods
       Order Calanoida Sars, 1903
         01 Family Acartiidae G.O. Sars, 1903
         02 Family Aetideidae Giesbrecht, 1892
         03 Family Arietellidae G.O. Sars, 1902
         04 Family Augaptilidae G.O. Sars, 1905
         05 Family Bathypontiidae Brodsky, 1950
         06 Family Calanidae Dana, 1846
         07 Family Candaciidae Giesbrecht, 1893
         08 Family Centropagidae Giesbrecht, 1893
         09 Family Clausocalanidae Giesbrecht, 1893
         10 Family Diaixidae G.O. Sars, 1902
         11 Family Discoidae Gordeeva, 1975
         12 Family Eucalanidae Giesbrecht, 1893
         13 Family Euchaetidae Giesbrecht, 1893
         14 Family Heterorhabdidae G.O. Sars, 1902
         15 Family Lucicutiidae G.O. Sars, 1902
         16 Family Mecynoceridae Andronov, 1973
         17 Family Megacalanidae Sewell, 1947
         18 Family Mesaiokeratidae Matthews, 1961
         19 Family Metridinidae G.O. Sars, 1902, nom. emend.
         20 Family Paracalanidae Giesbrecht, 1893
         21 Family Parapontellidae Giesbrecht, 1893
         22 Family Phaennidae G.O. Sars, 1902
         23 Family Phyllopodidae Brodsky, 1950, nom. illeg. see Family Nullosetigeridae Soh et al., 1999
         24 Family Pontellidae Dana, 1852
         25 Family Pseudocyclopidae Giesbrecht, 1893
         26 Family Pseudocyclopiidae G.O. Sars, 1902
         27 Family Pseudodiaptomidae G.O. Sars, 1902
         28 Family Ridgewayiidae M.S. Wilson, 1958
         29 Family Ryocalanidae Andronov, 1974
         30 Family Scolecitrichidae Giesbrecht, 1893
         31 Family Spinocalanidae Vervoort, 1951
         32 Family Stephidae G.O. Sars, 1902
         33 Family Temoridae Giesbrecht, 1893
         34 Family Tharybidae G.O. Sars, 1902