[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
         Entelegynae Simon, 1893
           Superfamily Araneoidea Clerck, 1757
             1 Family Theridiidae Sundevall, 1833 - cobweb and widow spiders
             2.1 symphytognathoids
             2.2.1.1 Family Malkaridae Davies, 1980
             2.2.1.2 tetragnathoids
             2.2.2.1.1.1 Family Nesticidae Simon, 1894
             2.2.2.1.1.2 Family Physoglenidae Petrunkevitch, 1928
             2.2.2.1.2.1 Family Cyatholipidae Simon, 1894
             2.2.2.1.2.2 linyphioids
             2.2.2.2.1 Family Synotaxidae Simon, 1894
             2.2.2.2.2 Family Araneidae Clerck, 1757 - orb-weavers