Kingdom [Animalia] Linnaeus, 1758 - animals
   Subkingdom Metazoa Haeckel, 1874 see Kingdom Animalia Linnaeus, 1758
     Division Eumetazoa Butschli, 1910 see Subkingdom Eumetazoa Butschli, 1910
       Subdivision Bilateralia
         Superphylum Articulata Cuvier see Supraphylum Articulata Cuvier
           Phylum Tardigrada Doyère, 1840 - tardigrades
             1 Order Heterotardigrada Marcus, 1927 see Class Heterotardigrada Marcus, 1927
             2 Order Eutardigrada Richters, 1926 see Class Eutardigrada Richters, 1926
             3 Order Mesotardigrada Rahm, 1937 see Class Mesotardigrada Rahm, 1937, nom. dub.