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 Parasitengona Oudemans, 1909 - chiggers, velvet mites, water mites, and their relatives see Hyporder Parasitengona Oudemans, 1909
                       01 Superfamily Calyptostomatoidea Oudemans, 1923
                       02 Superfamily Erythraeoidea Robineau-Desvoidy, 1828
                       03 Superfamily Trombidioidea Leach, 1815
                       04 Superfamily Stygothrombioidea Thor, 1935
                       05 Superfamily Hydryphantoidea Piersig, 1896 - water mites
                       06 Superfamily Eylaioidea Leach, 1815 see Superfamily Eylaoidea Leach, 1815
                       07 Superfamily Hydrovolzioidea Thor, 1905
                       08 Superfamily Hydrachnoidea Leach, 1815
                       09 Superfamily Lebertioidea Thor, 1900
                       10 Superfamily Hygrobatoidea Koch, 1842
                       11 Superfamily Arrenuroidea Thor, 1900