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 Labidognatha see Infraorder Araneomorphae Smith, 1902
                   Superfamily Araneoidea Clerck, 1757
                     01 Family Theridiidae Sundevall, 1833 - cobweb and widow spiders
                     02 Family Nesticidae Simon, 1894
                     03 Family Linyphiidae Blackwall, 1859 - sheet-web spinners
                     04 Family Araneidae C. Clerck, 1757 - orb-weavers
                     05 Family Mimetidae Simon, 1881
                     06 Family Tetragnathidae Menge, 1866 - orb-weavers
                     07 Family Archaeidae C.L. Koch & Berendt, 1854 - assassin spiders
                     08 Family Mysmenidae Petrunkevitch, 1928
                     09 Family Anapidae Simon, 1895
                     10 Family Symphytognathidae Hickman, 1931
                     11 Family Micropholcommatidae Hickman, 1944
                     12 Family Theridiosomatidae Simon, 1881
                     13 Family Nicodamidae Simon, 1897