[living organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Superkingdom Eukaryota Whittaker & Margulis, 1978 see Domain Eukaryota Chatton, 1925
     Kingdom Animalia Linnaeus, 1758 - animals
       Subkingdom Bilateria Hatschek, 1888 - bilaterians
         Infrakingdom Protostomia Grobben, 1908
           Superphylum Ecdysozoa Aguinaldo, Turbeville, Linford, Rivera, Garey, Raff & Lake, 1997
             1 Phylum Arthropoda Siebold, 1848 - arthropods
             2 Phylum Kinorhyncha Reinhard, 1887 - kinorhynchs
             3 Phylum Loricifera Kristensen, 1983 [monotypic] - loriciferans
             4 Phylum Nematoda Gegenbaur, 1859 - round worms
             5 Phylum Nematomorpha Vejdovsky, 1886 - horsehair worms
             6 Phylum Onychophora Grube, 1853 - velvet worms
             7 Phylum Priapula - priapulans see Phylum Priapulida Delage & Hérouard, 1897
             8 Phylum Tardigrada Doyère, 1840 - tardigrades