Kingdom Animalia Linnaeus, 1758 - animals
   Phylum Arthropoda Siebold, 1848 - arthropods
     Subphylum Crustacea Brünnich, 1772 - crustaceans see Superclass Crustacea Pennant, 1777
       Class Maxillopoda Dahl, 1956 see Subphylum Pancrustacea Zrzavý et al., 1997
         1 Subclass Ostracoda Latreille, 1806 - ostracods see Class Ostracoda Latreille, 1802
         2 Subclass Mystacocarida Pennak & Zinn, 1943 - mystacocarids
         3 Subclass Copepoda H. Milne-Edwards, 1840 - copepods
         4 Subclass Branchiura Thorell, 1864 - fish lice
         5 Subclass Cirripedia Lamarck - barnacles and their kin see Infraclass Cirripedia Burmeister, 1834
         6 Subclass Tantulocarida Boxshall & Lincoln, 1983 - tantulocarids