Kingdom Animalia Linnaeus, 1758 - animals
   Phylum Arthropoda Siebold, 1848 - arthropods
     1 Subphylum †Trilobitomorpha Størmer, 1944 - trilobites see Superclass Trilobitomorpha Størmer, 1944
     2 Subphylum Chelicerata Heymons, 1901
     2.1 Subphylum Myriapoda Latreille, 1802 - myriapods see Infraphylum Myriapoda Leach, 1814
     2.2.1 Subphylum Crustacea Brünnich, 1772 - crustaceans see Superclass Crustacea Pennant, 1777
     2.2.2 Subphylum Hexapoda Latreille, 1825 see Epiclass Hexapoda Latreille, 1825