[Phylum] [Arthropoda] Siebold, 1848 - arthropods
   Chelicerata Heymons, 1901
     Euchelicerata Weygoldt & Paulus, 1979
       Pantetrapulmonata Shultz, 2007
         [Order] Araneida Clerck, 1757 - spiders
           [Suborder] Araneae Clerck, 1757 - tailless spiders
             [Infraorder] Opisthothelae Pocock, 1892 - unsegmented spiders
               Araneomorphae Smith, 1902
                 CY Spigot Clade Wheeler et al., 2017
                   Entelegynae Simon, 1893
                     Superfamily Araneoidea Clerck, 1757
                       Family Theridiidae Sundevall, 1833 - cobweb and widow spiders
                         01 Genus Achaearanea Strand, 1929
                         02 Genus Argyrodes Simon, 1864
                         03 Genus †Balticoridion Wunderlich, 2008
                         04 Genus †Balticpholcomma Wunderlich, 2008
                         05 Genus †Burmatheridon Dunlop, Penney & Jekel, 2019, orth. inval. see Genus Burmatheridion Wunderlich, 2018
                         06 Genus †Caudasinus Wunderlich, 2008
                         07 Genus Chrosiothes Simon, 1894
                         08 Genus Chrysso Pickard-Cambridge, 1882
                         09 Genus †Clavibertus Wunderlich, 2008
                         10 Genus †Clya Koch & Berendt, 1854
                         11 Genus †Cornutheridion Wunderlich, 2021
                         12 Genus †Cornutidion Wunderlich, 1988
                         13 Genus Craspedisia Simon, 1894
                         14 Genus †Cretotheridion Wunderlich, 2015
                         15 Genus †Cymbiopholcomma Wunderlich, 2008
                         16 Genus †Dipoenata Wunderlich, 1988
                         17 Genus †Eoasagena Wunderlich, 2008
                         18 Genus †Eolyrifer Wunderlich, 2008
                         19 Genus †Eomysmena Petrunkevitch, 1942
                         20 Genus †Eoteutana Wunderlich, 2008
                         21 Genus Episinus Walckenaer, 1809
                         22 Genus Euryopis Menge, 1868
                         23 Genus Faiditus Keyserling, 1884
                         24 Genus †Femurraptor Wunderlich, 2011
                         25 Genus †Globulidion Wunderlich, 2008
                         26 Genus †Hirsutipalpus Wunderlich, 2008
                         27 Genus †Kochiuridion Wunderlich, 2008
                         28 Genus Lasaeola Simon, 1881
                         29 Genus †Microtheridion Wunderlich, 2021
                         30 Genus †Mimetidion Wunderlich, 2008
                         31 Genus †Nanomysmena Petrunkevitch, 1958
                         32 Genus †Nanosteatoda Wunderlich, 2008
                         33 Genus †Obscuropholcomma Dunlop, Penney & Jekel, 2009, orth. inval.
                         34 Genus Phoroncidia Westwood, 1835
                         35 Genus Platnickina Koçak & Kemal, 2008
                         36 Genus †Praetereuryopis Wunderlich, 2008
                         37 Genus †Pronepos Petrunkevitch, 1963
                         38 Genus †Protosteatoda Wunderlich, 2008
                         39 Genus †Pseudoteutana Wunderlich, 2008
                         40 Genus †Rugapholcomma Wunderlich, 2008
                         41 Genus †Spinisinus Wunderlich, 2008
                         42 Genus †Spinitharinus Wunderlich, 2008
                         43 Genus Spintharus Hentz, 1850
                         44 Genus Steatoda Sundevall, 1833
                         45 Genus Stemmops Pickard-Cambridge, 1894
                         46 Genus Styposis Simon, 1894
                         47 Genus †Succinobertus Wunderlich, 2008
                         48 Genus †Succinura Wunderlich, 2008
                         49 Genus Theridion Walckenaer, 1805
                         50 Genus †Thyelia Koch & Berendt, 1854
                         51 Genus Ulesanis Koch, 1872 see Genus Phoroncidia Westwood, 1835
                         52 Genus †Unispinatoda Wunderlich, 2008
                         53 Genus †Vicipholcomma Wunderlich, 2008