Kingdom Animalia Linnaeus, 1758 - animals Phylum Nematoda Gegenbaur, 1859 - round worms Class Enoplea Inglis, 1983 Subclass Enoplia Pearse, 1942 Superorder Rhaptothyreica Hodda, 2011 [monotypic] 1 Order Rhaptothyreida Tchesunov, 1997 [monotypic]