[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
                 Subcohort Dermanyssiae Evans & Till, 1979 see Hyporder Dermanyssiae Evans & Till, 1979
                   Superfamily Rhodacaroidea Oudemans, 1902
                     1 Family Digamasellidae Evans, 1957 [monotypic]
                     2 Family Euryparasitidae d'Antony, 1987
                     3 Family Gamasiphidae
                     4 Family Laelaptonyssidae Womersley, 1956
                     5 Family Ologamasidae Ryke, 1962
                     6 Family Panteniphididae d'Antony, 1987 see Family Digamasellidae Evans, 1957
                     7 Family Rhodacaridae Oudemans, 1902
                     8 Family Teranyssidae Halliday, 2006