Grossopterus

Grossopterus
Temporal range: Early Devonian,
Fossil carapace of G. inexpectans
Scientific classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Subphylum: Chelicerata
Order: Eurypterida
Superfamily: Waeringopteroidea
Family: Waeringopteridae
Genus: Grossopterus
Størmer, 1934
Species
  • G. inexpectans (Ruedemann, 1921)
  • G. overathi (Gross, 1933, type species)

Grossopterus is a genus of prehistoric eurypterid classified as part of the family Waeringopteridae. The genus contains two species, G. inexpectans from Gilboa, United States and G. overathi from Overath, Germany.