Hexapods - insects see Epiclass Hexapoda Latreille, 1825
   Class Diplura Börner, 1904
     Order Diplura Börner, 1904 - diplurans
       .1 Family Dinajapygidae nom. null. see Family Dinjapygidae Womersley, 1939
       .2 Family Heterojapygidae Womersley, 1939 see Subfamily Heterojapyginae Womersley, 1939
       .3 Family Projapygidae Cook, 1899
       1 Family Campodeidae Meinert, 1865
       2 Family Procampodeidae Silvestri, 1948
       3 Family Anajapygidae Bagnall, 1918
       4 Family Japygidae Haliday, 1864 see Family Iapygidae Haliday, 1864
       5 Family Parajapygidae (Womersley, 1939) Pagés, 1959