[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 Holothyrida Thon, 1905 see Order Holothyrida Thon, 1905
             1 Superfamily Holotyhroidea Dunlop, Penney & Jekel, 2010, orth. inval. see Superfamily Holothyroidea Thorell, 1882