living organisms see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Superkingdom Eukaryotae see Domain Eukaryota Chatton, 1925
     Kingdom Animalia Linnaeus, 1758 - animals
       Subkingdom Eumetazoa Butschli, 1910 see [unranked] Eumetazoa Bütschli, 1910
         Phylum Nemata Cobb, 1919 see Phylum Nematoda Gegenbaur, 1859
           Class Adenophorea
             Subclass Enoplia Pearse, 1942
               Order Enoplida Filipjev, 1929
                 Suborder Tripylina Andrassy, 1974
                   Superfamily Ironoidea De Man, 1876
                     Family Ironidae De Man, 1876
                       1 Subfamily Ironinae De Man, 1876
                       2 Subfamily Criptonchinae
                       3 Genus Ironis see Genus Ironus Bastian, 1865