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 Coelocheta see Superorder Helminthomorpha Pocock, 1887
                   Order Chordeumatida Pocock, 1894
                     Suborder Chordeumatidea Pocock, 1894
                       01 Superfamily Diplomaragnoidea Attems, 1907
                       02 Superfamily Heterochordeumatoidea Pocock, 1894
                       03 Superfamily Neoatractosomatoidea Verhoeff, 1901
                       04 Superfamily Haaseoidea Attems, 1899
                       05 Superfamily Cleidogonoidea Cook, 1896
                       06 Superfamily Verhoeffioidea Verhoeff, 1899
                       07 Superfamily Craspedosomatoidea Gray in Jones, 1843
                       08 Superfamily Chordeumatoidea C.L. Koch, 1847
                       09 Superfamily Brannerioidea Cook, 1896
                       10 ?Family Urochordeumatidae Silvestri, 1909
                       11 ?Family Caseyidae Verhoeff, 1909
                       12 ?Family Opisthocheiridae Ribaut, 1913
                       13 ?Family Speophilosomatidae Takakuwa, 1949
                       14 ?Family Niponiosomatidae Verhoeff, 1941
                       15 ?Family Hoffmaneumatidae Golovatch, 1978