Chelicerata Heymons, 1901
†Eurypterida Burmeister, 1843 - eurypterids
†Stylonurina Diener, 1924
Superfamily †Rhenopteroidea Størmer, 1951 [monotypic]
Family †Rhenopteridae Størmer, 1951
1 Genus †Brachyopterella Kjellesvig-Waering, 1966
2 Genus †Brachyopterus Størmer, 1951
3 Genus †Kiaeropterus Waterson, 1979
4 Genus †Leiopterella Lamsdell, Braddy, Loeffler & Dineley, 2010
5 Genus †Rhenopterus Størmer, 1936