[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 Mygalomorphae Pocock, 1892 see Microorder Mygalomorpha Pocock, 1892
         Superfamily Avicularioidea Simon, 1874
           Family Idiopidae Simon, 1889