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 Secernentea Von Linstow, 1905
             Subclass Rhabditia see Superorder Rhabditica Hodda, 2007
               Order Rhabditida Chitwood, 1933
                 Suborder Rhabditina Chitwood, 1933
                   Superfamily Bunonematoidea Micoletzky, 1922
                     Family Bunonematidae Micoletzky, 1922
                       1 Genus Bunonema Jägerskiöld, 1905
                       2 Genus Rhodolaimus Fuchs, 1930
                       3 Genus Serronema
                       4 Genus Aspidonema Sachs, 1949
                       5 Genus Craspedonema Richters, 1908
                       6 Genus Sachsium Andrassy, 1971