Kingdom Animalia Linnaeus, 1758 - animals
   Phylum Arthropoda Siebold, 1848 - arthropods
     Subphylum Chelicerata Heymons, 1901
       Class Arachnida Lamarck, 1801
         Superorder Parasitiformes Reuter, 1909 - ticks and ticklike mites
           Order Mesostigmata Canestrini, 1891
             Suborder Trigynaspida Camin & Gorirossi, 1955
               Infraorder Antennophorina Camin & Gorirossi, 1955
                 Superfamily Aenictequoidea Kethley, 1977
                   1 Family Aenictequidae Kethley, 1977
                   2 Family Euphysalozerconidae Kim, 2008
                   3 Family Messoracaridae Kethley, 1977
                   4 Family Ptochacaridae Kethley, 1977