[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
       1 Infraorder Mygalomorphae Pocock, 1892 see Microorder Mygalomorpha Pocock, 1892
       2 Infraorder Araneomorphae Smith, 1902 see [unranked] Araneomorphae Smith, 1902