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 Triplonchida Cobb, 1920 [monotypic] 1 Suborder Diphtherophorina Coomans & Loof, 1970