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 Trombidiformes Reuter, 1909
             Suborder Prostigmata Kramer, 1877
               Infraorder Eleutherengona Oudemans, 1909
                 Hyporder Heterostigmata Berlese, 1899
                   Superfamily Heterocheyloidea Trägårdh, 1950 [monotypic]
                     Family Heterocheylidae Trägårdh, 1950