Kingdom Animalia Linnaeus, 1758 - animals
   Phylum Arthropoda Siebold, 1848 - arthropods
     Subphylum Chelicerata Heymons, 1901
       Class Arachnida Lamarck, 1801
         Superorder Acariformes Zakhvatkin, 1952 - mitelike mites
           Order Sarcoptiformes Reuter, 1909
             Suborder Oribatida van der Hammen, 1968 - oribatid mites
               Infraorder Palaeosomata Grandjean, 1969
                 1 Superfamily Acaronychoidea Grandjean, 1932
                 2 Superfamily Palaeacaroidea Grandjean, 1932 [monotypic]
                 3 Superfamily Ctenacaroidea Grandjean, 1954 see Superfamily Palaeacaroidea Grandjean, 1932