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 Prismatolaimina Hodda, 2011 Superfamily Onchuloidea Andrassy, 1964 [monotypic] Family Onchulidae Andrassy, 1964