Kingdom Animalia Linnaeus, 1758 - animals Phylum Nematoda Gegenbaur, 1859 - round worms Class Dorylaimea Hodda, 2007 Subclass Bathyodontia Hodda, 2007 [monotypic] Superorder Mononchica Hodda, 2007 Order Mermithida Hyman, 1951 Suborder Aulolaimina Hodda, 2007 Superfamily Isolaimioidea Timm, 1969 [monotypic] Family Isolaimiidae Timm, 1969