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 Chelicerata Heymons, 1901
             Class Arachnida Lamarck, 1801
               Order Scorpiones Koch, 1837 - scorpions
                 1 Family Buthidae Koch, 1837
                 2 Family Chaerilidae Pocock, 1893
                 3 Family Iuridae Thorell, 1876
                 4 Family Chactidae Pocock, 1893
                 5 Family Vaejovidae Thorell, 1876
                 6 Family Bothriuridae Simon, 1880
                 7 Family Diplocentridae Karsch, 1880
                 8 Family Scorpionidae Latreille, 1802