Erieopterus is a genus of prehistoric eurypterid found in Silurian to Devonian-aged marine and freshwater strata of North America. The genus contains three species from the Silurian to the Devonian. Erieopterus is the only genus in the family Erieopteridae, part of the Dolichopteroidea superfamily.

Species

Reconstruction of Erieopterus
  • Erieopterus eriensis (Whitfield, 1882) — Silurian, USA
  • Erieopterus microphthalmus (Hall, 1859) — Devonian, USA & Canada
  • Erieopterus phillipsensis Copeland, 1971 — Silurian. Canada

Invalid species

  • "Erieopterus hypsophthalmus" Kjellesvig-Waering, 1958 — Silurian, USA, synonym of E. eriensis
  • "Erieopterus laticeps"(Schmidt, 1883) — Silurian, Norway, assigned to Strobilopterus
  • "Erieopterus limuloides" (Kjellesvig-Waering, 1948) — Silurian, USA, assigned to Barusopterus
  • "Erieopterus turgidus" Stumm & Kjellesvig-Waering, 1962 — Silurian, USA, synonym of E. microphthalmus