Kingdom Animalia Linnaeus, 1758 - animals
   Phylum Nematoda Gegenbaur, 1859 - round worms
     Class Enoplea Inglis, 1983
       Subclass Enoplia Pearse, 1942
         Superorder Enoplica Hodda, 2007
           Order Tripyloidida Hodda, 2007
             Suborder Tripyloidina De Coninck, 1965
               Superfamily Trischistomatoidea Andrassy, 2007 [monotypic]
                 Family Trischistomatidae Andrassy, 2007