Kingdom Animalia Linnaeus, 1758 - animals
   Phylum Nematoda Gegenbaur, 1859 - round worms
     Class Chromadorea Inglis, 1983
       Subclass Plectia Hodda, 2007
         Superorder Monhysterica Hodda, 2007 [monotypic]
           Order Monhysterida Filipjev, 1929
             Suborder Araeolaimina De Coninck, 1965 [monotypic]
               Superfamily Axonolaimoidea De Coninck & Schuurmans Stekhoven, 1933
                 1 Family Axonolaimidae De Coninck & Schuurmans Stekhoven, 1933
                 2 Family Bodonematidae Jensen, 1991
                 3 Family Comesomatidae Filipjev, 1918
                 4 Family Coninckiidae Lorenzen, 1981
                 5 Family Diplopeltidae Filipjev, 1918