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
                       Superfamily Heterochordeumatoidea Pocock, 1894
                         Family Metopidiothricidae
                           1 Genus Metopidiothrix Attems, 1907
                           2 Genus Malayothrix Verhoeff, 1929