Height : 2 m (6ft)

Length: 10 m (33 ft)

Weight : 4.5 tonnes (5 tons)

Corythosaurus was a vegetarian that lived around 80 to 65 million years ago during the late Cretaceous period. Corythosaurus had a hollow, bony crest on the top of its skull, through which its nostrils went. Males had larger crests than females so it may have been for used for courtship display.

Like all Ornithischians Corythosaurus had a toothless beak for obtaining food and lots of teeth in is jaws for chewing it.

Contemporary predators would have included Albertosaurus, Tyrannosaurs rex and Deinonychus.

Corythosaurus means "Helmet lizard" and was named by Barnum Brown in 1914. Fossils have been found in Montana, USA and Alberta, Canada.

  • Dinosauria (Dinosaurs)
    • Ornithischia (Bird Hipped)
      • Ornithopoda
        • Iguanodontia (having spiked thumbs)
          • Hadrosauroidea (duck-billed dinosaurs)
            • Lambeosaurinae (hollow-crested duckbills)
              • Corythosaurus
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