Corythosaurus

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 PreЄ Є O S D C P T J K Pg N ↓
Scientific classification
Unrecognized taxon (fix):	Corythosaurus
Species
†C. casuarius Brown, 1914 (type) †C. intermedius (Parks, 1923 [originally Stephanosaurus])
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