[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
                 Synspermiata Michalik & Ramírez, 2014
                   Superfamily Dysderoidea Koch, 1837
                     1 Family Segestriidae Simon, 1893
                     2 Family †Parvosegestriidae Wunderlich, 2020 [monotypic]
                     3 Family Oonopidae Simon, 1890
                     4 Family Orsolobidae Cooke, 1965
                     5 Family †Plumorsolidae Wunderlich, 2008 [monotypic]
                     6 Family Dysderidae Koch, 1837