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 Tardigrada Doyère, 1840 - tardigrades
           Order Eutardigrada Richters, 1926 see Class Eutardigrada Richters, 1926
             Family Macrobiotidae Thulin, 1928
               Genus Hypsibius Ehrenberg, 1848
                 Subgenus Isohypsibius (Thulin, 1928) Marcus, 1929 see Genus Isohypsibius Thulin, 1928
                   Hypsibius annulatus (Murray, 1905) see Isohypsibius annulatus (Murray, 1905)