[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
                   1 Subclass Cephalocarida H.L. Sanders, 1955 see Class Cephalocarida H.L. Sanders, 1955
                   2 Subclass Branchiopoda Latreille, 1817 see Class Branchiopoda Latreille, 1817
                   3 Subclass Ostracoda Latreille, 1806 - ostracods see Class Ostracoda Latreille, 1802
                   4 Subclass Mystacocarida Pennak & Zinn, 1943 - mystacocarids
                   5 Subclass Copepoda H. Milne-Edwards, 1840 - copepods
                   6 Subclass Branchiura Thorell, 1864 - fish lice
                   7 Subclass Cirripedia Lamarck - barnacles and their kin see Infraclass Cirripedia Burmeister, 1834
                   8 Subclass Malacostraca Latreille, 1802 see Class Malacostraca Latreille, 1802