[Phylum] [Arthropoda] Siebold, 1848 - arthropods
   Chelicerata Heymons, 1901
     Euchelicerata Weygoldt & Paulus, 1979
       [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
             Infraorder Monogynaspida Camin & Gorirossi, 1955 see Suborder Monogynaspida Camin & Gorirossi, 1955
               Cohort Gamasina Kramer, 1881 see Infraorder Gamasina Kramer, 1881
                 1 Subcohort Epicriiae Vitzthum, 1938 see Hyporder Epicriiae Vitzthum, 1938
                 2 Subcohort Arctacariae Johnston, 1982 [monotypic] see Hyporder Arctacariae Johnston, 1982
                 3 Subcohort Parasitiae Reuter, 1909 [monotypic] see Hyporder Parasitiae Reuter, 1909
                 4 Subcohort Dermanyssiae Evans & Till, 1979 see Hyporder Dermanyssiae Evans & Till, 1979