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
                       Superfamily Trombidioidea Leach, 1815
                         1 Family Chyzeriidae Womersley, 1954
                         2 Family Johnstonianidae Thor, 1935
                         3 Family Leeuuwenhoekiidae see Family Leeuwenhoekiidae Womersley, 1944
                         3 Family Leeuwenhockiidae see Family Leeuwenhoekiidae Womersley, 1944
                         3 Family Leeuwenhoekiidae Womersley, 1944
                         4 Family Podothrombiidae see Subfamily Podothrombiinae Thor, 1935
                         5 Family Trombellidae Thor, 1935
                         6 Family Neotrombidiidae Feider, 1955
                         7 Family Trombiculidae Ewing, 1929 - chiggers
                         8 Family Trombidiidae Leach, 1815
                         9 Family Stygotrombidiidae see Family Stygothrombiidae Thor, 1935