[Phylum] [Arthropoda] Siebold, 1848 - arthropods
   Chelicerata Heymons, 1901
     Euchelicerata Weygoldt & Paulus, 1979
       [Order] †Eurypterida Burmeister, 1843 - eurypterids
         [Suborder] †Stylonurina Diener, 1924
           Superfamily †Mycteropoidea Cope, 1886
             Family †Mycteropidae Cope, 1886
               1 Genus †Megarachne Hünicken, 1980
               2 Genus †Mycterops Cope, 1886
               3 Genus †Woodwardopterus Kjellesvig-Waering, 1959