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 Cercomegistina Camin & Gorirossi, 1955 [monotypic]
                 Superfamily Cercomegistoidea Trägårdh, 1937
                   1 Family Asternoseiidae Valle, 1955
                   2 Family Cercomegistidae Trägårdh, 1937
                   3 Family Davacaridae Kethley, 1977
                   4 Family Pyrosejidae Lindquist & Moraza, 1993
                   5 Family Saltiseiidae Walter, 2000
                   6 Family Seiodidae Kethley, 1977