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 Diplogasteria see Subclass Plectia Hodda, 2007
               Order Diplogasterida Inglis, 1983 see Order Diplogastrida Inglis, 1983
                 Suborder Diplogasterina Paramonov, 1952 see Suborder Diplogastrina Paramonov, 1952
                   Superfamily Cylindrocorporoidea Goodey, 1939
                     Family Cylindrocorporidae Goodey, 1939
                       1 Genus Cylindrocorpus Goodey, 1939
                       2 Genus Goodeyus Chitwood, 1933
                       3 Genus Myctolaimus Cobb, 1920
                       4 Genus Protocylindrocorpus
                       5 Genus Longibucca Chitwood, 1933