[Phylum] [Arthropoda] Siebold, 1848 - arthropods
   Chelicerata Heymons, 1901
     Euchelicerata Weygoldt & Paulus, 1979
       [Order] †Eurypterida Burmeister, 1843 - eurypterids
         [Suborder] †Eurypterina Burmeister, 1843
           [Infraorder] †Diploperculata Lamsdell, Hoşgör & Selden, 2013
             Superfamily †"Waeringopteroidea" nom. ined.
               1 Genus †Grossopterus Størmer, 1935
               2 Genus †Orcanopterus Stott, Tetlie, Braddy, Nowlan, Glasser & Devereux, 2005
               3 Genus †Waeringopterus Leutze, 1961