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 Dorylaimida Pearse, 1942
                 Suborder Nygolaimina Ahmad & Jairajpuri, 1979
                   Superfamily Nygolaimoidea Thorne, 1935
                     Family Nygolaimellidae Clark, 1961
                       1 Genus Nygolaimium Thorne, 1930
                       2 Genus Nygolaimellus Loos, 1949