Kingdom Animalia Linnaeus, 1758 - animals
   Phylum Nematoda Gegenbaur, 1859 - round worms
     Class Enoplea Inglis, 1983
       Subclass Triplonchia Hodda, 2007 [monotypic]
         Superorder Triplonchica Hodda, 2007
           Order Tripylida Siddiqi, 1983
             Suborder Tripylina Andrassy, 1974
               1 Superfamily Tripyloidea De Man, 1876 [monotypic]
               2 Superfamily Tobriloidea Filipjev, 1918