[Phylum] [Arthropoda] Siebold, 1848 - arthropods
   Chelicerata Heymons, 1901
     Euchelicerata Weygoldt & Paulus, 1979
       [Subclass] Acari Leach, 1817 - mites and ticks
         1 [Order] Parasitiformes Reuter, 1909 see Superorder Parasitiformes Reuter, 1909
         2 [Order] Acariformes Zakhvatkin, 1952 see Superorder Acariformes Zakhvatkin, 1952