Corythosaurus is a genus o hadrosaurid "deuk-billed" dinosaur from the Late Cretaceous period, aboot 77-75.7 million years ago.

Corythosaurus
Temporal range: Late Cretaceous (Campanian), 77–75.7 Ma
Scientific classification e
Unrecognized taxon (fix): Corythosaurus
Species
Synonyms
  • Corythosaurus excavatus
    Gilmore, 1923
  • Stephanosaurus intermedius
    Parks, 1923
  • Procheneosaurus erectofrons
    (Parks, 1931 [originally Tetragonosaurus])
  • Tetragonosaurus erectofrons
    Parks, 1931
  • Corythosaurus bicristatus
    Parks, 1935
  • Corythosaurus brevicristatus
    Parks, 1935