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
             1 Subclass Rhabditia see Superorder Rhabditica Hodda, 2007
             2 Subclass Spiruria see Subclass Plectia Hodda, 2007
             3 Subclass Diplogasteria see Subclass Plectia Hodda, 2007