Japygoidea

Dicellurata is a suborder of two-pronged bristletails in the order Diplura. There are at least 4 families and more than 170 described species in Dicellurata. Japygoidea  is the only superfamily in the suborder.

Families
These four families belong to the suborder Dicellurata:
 * Dinjapygidae Womersley, 1939
 * Heterojapygidae
 * Japygidae Lubbock, 1873 (forcepstails)
 * Parajapygidae Womersley, 1939