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 Chromadoria Adamson, 1987
               Order Chromadorida Chitwood, 1933
                 Suborder Chromadorina Filipjev, 1929
                   Superfamily Chromadoroidea Filipjev, 1917
                     1 Family Chromadoridae Filipjev, 1917
                     2 Family Hypodontolaimidae de Coninck, 1965
                     3 Family Microlaimidae Micoletzky, 1922
                     4 Family Spirinidae