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
                   Family Theraphosidae Thorell, 1869 - tarantulas and bird spiders
                     1 Genus Aphonopelma Pocock, 1901
                     2 Genus Grammostola Simon, 1892
                     3 Genus Cyrtopholis Simon, 1892
                     4 Genus Dugesia Levi, 1982
                     5 Genus Avicularia Lamarck, 1818
                     6 Genus Acanthoscurria Ausserer, 1871