[Phylum] [Arthropoda] Siebold, 1848 - arthropods
   Chelicerata Heymons, 1901
     Euchelicerata Weygoldt & Paulus, 1979
       [Order] Pseudoscorpiones De Geer, 1778
         Homosyphronida Dunlop, Penney & Jekel, 2020, orth. inval. see Group Homosphyronida Chamberlin, 1929
           [Suborder] Iochierata Dunlop, Penney & Jekel, 2010, orth. inval. see Suborder Iocheirata Harvey, 1992
             [Infraorder] Panctenata Balzan, 1892
               Superfamily Cheliferoidea Risso, 1826
                 Family Atemnidae Kishida, 1929
                   1 Genus Paratemnoides Harvey, 1991
                   2 Genus †Progonatemnus Beier, 1955