[Subphylum] [Chelicerata] Heymons, 1901
   [Order] Araneae Clerck, 1757 - spiders see Suborder Araneae Clerck, 1757
     Suborder Opisthothelae Pocock, 1892 - modern spiders see Infraorder Opisthothelae Pocock, 1892
       Infraorder Araneomorphae Smith, 1902 see [unranked] Araneomorphae Smith, 1902
         Synspermiata Michalik & Ramírez, 2014
           Superfamily Dysderoidea Koch, 1837
             1 Family Oonopidae Simon, 1890
             2.1 Family Dysderidae Koch, 1837
             2.2.1 Family Segestriidae Simon, 1893
             2.2.2 Family Orsolobidae Cooke, 1965