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 Araneae Clerck, 1757 - spiders
                 Suborder Orthognatha see Infraorder Mygalomorphae Pocock, 1892
                   Family Ctenizidae Thorell, 1887 - trap-door spiders
                     1 Genus Nemesia Audouin, 1826
                     2 Genus Cyclocosmia Ausserer, 1871
                     3 Genus Ummidia Thorell, 1875
                     4 Genus Myrmeciaphyla
                     5 Genus Bothriocyrtum Simon, 1892