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
                         Family Trombidiidae Leach, 1815
                           1 Subfamily Hygrothrombidiinae Robaux, 1969 see Family Trombidiidae Leach, 1815
                           2 Subfamily Feiderinae see Subfamily Feideriinae Vercammen-Grandjean, 1973
                           3 Subfamily Georgiinae Vercammen-Grandjean, 1973 see Family Leeuwenhoekiidae Womersley, 1944
                           4 Subfamily Microtrombidiinae Thor, 1935 see Family Microtrombidiidae Thor, 1935
                           5 Subfamily Eutrombidiinae Thor, 1936
                           6 Subfamily Allothrombiinae Thor, 1935
                           7 Subfamily Trombidiinae Leach, 1815