[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Kingdom Animalia Linnaeus, 1758 - animals
     Branch Eumetazoa Butschli, 1910 see [unranked] Eumetazoa Bütschli, 1910
       Division Bilateria Hatschek, 1888 see Subkingdom Bilateria Hatschek, 1888
         Subdivision Protostomia Grobben, 1908 see Infrakingdom Protostomia Grobben, 1908
           Section Eucoelomata see Superphylum Eucoelomata
             Phylum Arthropoda Siebold, 1848 - arthropods
               Subphylum Mandibulata Snodgrass, 1938
                 Class Crustacea Brünnich, 1772 - crustaceans see Superclass Crustacea Pennant, 1777
                   Subclass Copepoda H. Milne-Edwards, 1840 - copepods
                     Order Calanoida Sars, 1903
                       1 Genus Calanus Leach, 1816
                       2 Genus Diaptomus Westwood, 1836