living organisms see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Superkingdom Eukaryotae see Domain Eukaryota Chatton, 1925
     Kingdom Animalia Linnaeus, 1758 - animals
       Subkingdom Eumetazoa Butschli, 1910 see [unranked] Eumetazoa Bütschli, 1910
         Phylum Arthropoda Siebold, 1848 - arthropods
           Subphylum Uniramia Snodgrass, 1935 see Phylum Arthropoda Siebold, 1848
             Class Diplopoda Blainville, 1844 - millipedes
               Subclass Helminthomorpha 1958 see Superorder Helminthomorpha Pocock, 1887
                 Superorder Anocheta see Order Spirobolida Cook, 1895
                   Order Spirobolida Cook, 1895
                     Suborder Spirobolidea Cook, 1895
                       Family Atopetholidae Chamberlin, 1918
                         1 Subfamily Atopetholinae Chamberlin, 1918
                         2 Subfamily Eurelinae Hoffman & Orcutt, 1960
                         3 Subfamily Arinolinae Hoffman & Orcutt, 1960
                         4 Subfamily Onychelinae Hoffman & Orcutt, 1960