| Suborder | Eurypterina ♰
Burmeister, 1843
| 0
0
0 | Families
Genera
Species |
| Suborder | Stylonurina ♰
Diener, 1924
| 11
37
86 | Families
Genera
Species |
| Superfamily | Adelophthalmoidea ♰
Tetlie & Van Roy, 2006
| 1
2
33 | Family
Genera
Species |
| Superfamily | Pterygotioidea ♰
Clarke & Ruedemann, 1912
| 1
7
95 | Family
Genera
Species |
| Family | Brachyopterellidae ♰
Tollerton, 1989
| 0
0 | Genera
Species |
| Family | Carcinosomatidae ♰
Størmer, 1934
| 4
19 | Genera
Species |
| Family | Dolichopteridae
Kjellesvig-Waering & Stormer, 1952
| 1
0 | Genus
Species |
| Family | Erieopteridae
Tollerton, 1989
| 0
0 | Genera
Species |
| Family | Eurypteridae ♰
De Kay, 1825
| 7
59 | Genera
Species |
| Family | Hughmilleriidae
Kjellesvig-Waering, 1951
| 1
0 | Genus
Species |
| Family | Jaekelopteridae ♰
Størmer, 1974
| 0
0 | Genera
Species |
| Family | Lanarkopteridae ♰
Tollerton, 1989
| 0
0 | Genera
Species |
| Family | Laurieopteridae ♰
Kjellesvig-Waering, 1966
| 0
0 | Genera
Species |
| Family | Megalograptidae ♰
Caster & Kjellesvig-Waering, 1955
| 0
0 | Genera
Species |
| Family | Mixopteridae
Caster & Kjellesvig-Waering, 1955
| 1
1 | Genus
Species |
| Family | Slimonidae ♰
| 1
4 | Genus
Species |
| Family | Slimoniidae ♰
Novojilov, 1962
| 0
0 | Genera
Species |
| Family | Woodwardopteridae ♰
Cope, 1886 ⇒ Mycteroptidae
| 0
0 | Genera
Species |
| Genus | Baltoeurypterus ♰
De Kay, 1825 ⇒ Eurypterus
| 12 | Species |
| Genus | Bassipterus ♰
| 1 | Species |
| Genus | Buffalopterus ♰
Kjellesvig-Waering & Heubusch, 1962
| 1 | Species |
| Genus | Clarkeipterus ♰
Kjellesvig-Waering, 1966
| 2 | Species |
| Genus | Dolichopterus ♰
Hall, 1859
| 13 | Species |
| Genus | Holmipterus ♰
Kjellesvig-Waering, 1979
| 1 | Species |
| Genus | Hughmilleria ♰
Sarle, 1903
| 9 | Species |
| Genus | Lanarkopterus ♰
Ritchie, 1968
| 1 | Species |
| Genus | Mixopterus ♰
Ruedemann, 1921
| 4 | Species |
| Genus | Moselopterus ♰
Stormer, 1974
| 2 | Species |
| Genus | Nanahughmilleria ♰
Kjellesvig-Waering, 1961
| 8 | Species |
| Genus | Onychopterella ♰
Størmer, 1951
| 3 | Species |
| Genus | Parahughmilleria ♰
Kjellesvig-Waering, 1961
| 7 | Species |
| Genus | Pentlandopterus ♰
Lamsdell, Hosgör & Selden, 2013
| 1 | Species |
| Genus | Pittsfordipterus ♰
| 1 | Species |
| Genus | Rhinocarcinosoma ♰
Novojilov, 1962
| 3 | Species |
| Genus | Ruedemannipterus ♰
Kjellesvig-Waering, 1966
| 1 | Species |
| Genus | Salteropterus ♰
Salter, 1859
| 2 | Species |
| Genus | Stylonuroides ♰
Kjellesvig-Waering, 1966
| 1 | Species |
| Genus | Syntomopterus ♰
Kjellesvig-Waering, 1961
| 1 | Species |
| Genus | Thurandina ♰
Stormer, 1974
| 1 | Species |
| Genus | Truncatiramus ♰
Kjellesvig-Waering, 1961
| 6 | Species |
| Genus | Waeringopterus ♰
Leutze, 1961
| 2 | Species |
| Genus | Wiedopterus
Poschmann, 2015
| 1 | Species |
