Kingdom Animalia Linnaeus, 1758 - animals
   Phylum Nematoda Gegenbaur, 1859 - round worms
     Class Dorylaimea Hodda, 2007
       Subclass Dorylaimia Inglis, 1983 [monotypic]
         Superorder Dorylaimica Hodda, 2007 [monotypic]
           Order Dorylaimida Pearse, 1942
             Suborder Dorylaimina Chitwood, 1933
               Superfamily Actinolaimoidea Thorne, 1939
                 1 Family Actinolaimidae Thorne, 1939
                 2 Family Carcharolaimidae Thorne, 1967
                 3 Family Trachypleurosidae Thorne, 1967