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] 1 Family Trischistomatidae Andrassy, 2007