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 Parasitiformes Reuter, 1909 see Superorder Parasitiformes Reuter, 1909
                   Suborder Mesostigmata Canestrini, 1891 see Order Mesostigmata Canestrini, 1891
                     Cohort Sejina Kramer, 1885 see Superfamily Sejoidea Berlese, 1885
                       1 Family Sejidae Berlese, 1885
                       2 Family Ichthyosomatogasteridae see Family Ichthyostomatogasteridae Sellnick, 1953
                       3 Family Uropodellidae Camin, 1955