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 see Suborder Araneae Clerck, 1757
                 Suborder Orthognatha see Infraorder Mygalomorphae Pocock, 1892
                   01 Family Antrodiaetidae Gertsch, 1940
                   02 Family Mecicobothriidae Holmberg, 1882
                   03 Family Atypidae Thorell, 1870 - purse-web spiders
                   04 Family Theraphosidae Thorell, 1869 - tarantulas and bird spiders
                   05 Family Pycnothelidae Chamberlin, 1917
                   06 Family Paratropididae Simon, 1889, nom. praeval.
                   07 Family Dipluridae Simon, 1889 - funnel-web spiders
                   08 Family Actinopodidae Simon, 1892
                   09 Family Migidae Simon, 1889
                   10 Family Barychelidae Simon, 1889
                   11 Family Ctenizidae Thorell, 1887 - trap-door spiders