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
               1 Superfamily Actinolaimoidea Thorne, 1939
               2 Superfamily Belondiroidea Thorne, 1939 [monotypic]
               3 Superfamily Dorylaimoidea De Man, 1876
               4 Superfamily Longidoroidea Thorne, 1935
               5 Superfamily Tylencholaimoidea Filipjev, 1934