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 Arthropoda Siebold, 1848 - arthropods
           Subphylum Chelicerata Heymons, 1901
             Class Arachnida Lamarck, 1801
               Subclass Acari Leach, 1817 - mites and ticks
                 Order Acariformes Zakhvatkin, 1952 see Superorder Acariformes Zakhvatkin, 1952
                   Suborder Prostigmata Kramer, 1877
                     Cohort Eleutherengona Oudemans, 1909 see Infraorder Eleutherengona Oudemans, 1909
                       Subcohort Raphignathae see Cohort Raphignathina Kethley, 1982
                         Superfamily Raphignathoidea Kramer, 1877
                           1 Family Barbutiidae Robaux, 1975
                           2 Family Caligonellidae Grandjean, 1944
                           3 Family Camerobiidae Southcott, 1957
                           4 Family Cryptognathidae Oudemans, 1902
                           4 Family Cryptognathiidae see Family Cryptognathidae Oudemans, 1902
                           5 Family Eupalopsellidae Willmann, 1952
                           6 Family Homocaligidae Wood, 1969
                           7 Family Raphignathidae Kramer, 1877
                           8 Family Stigmaeidae Oudemans, 1931
                           9 Family Xenocaligonellididae Gonzalez, 1978