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Quick Facts
Kingdom: Animalia
Phylum: Chordata
Class: Archosauria
Order: Ornithischia
Family: Lambeosaurinae
Genus: Corythosaurus
Species: casuarius

Height: 78 inches
Length: 396 inches
Weight: 10000 lbs

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Corythosaurus

Corythosaurus casuarius

Also Called: Helmet Lizard


Corythosaurus was a large, semi-intelligent, plant-eating, duck-billed dinosaur. It was 33 feet long, 6.6 feet tall at the hips, and may have weighed up to 5 tons. It had a hollow, bony crest on top of its long head, shaped like a helmet with flattened sides. The crest of Corythosaurus formed from the upper lip bone and the nasal bone. These two bones extend over the skull, taking the nasal passage with them. The nasal passage is folded similar to a woodwind instrument, which allowed Corythosaurus to make sounds. The crest also housed the enlarged olfactory lobes of the brain, increasing the sense of smell. Corythosaurus had short arms, a long, pointed tail, three-toed, hoofed feet, and mitten-like hands. It walked and ran on two legs, and was a moderately fast dinosaur. Corythosaurus may have gone on all fours to forageWhat does forage mean? for low-lying plants. It had a toothless beak and hundreds of cheek teeth that were used to grind food. Its skin had a pebbly texture.


Corythosaurus was a herbivoreWhat does herbivore mean?, perhaps eating pine needles, conifersWhat does conifers mean?, ginkgos, seeds, cycads, twigs, and magnolia leaves.


Corythosaurus lived during the Cretaceous period and had no natural defenses against predatorsWhat does predators mean?. Also living in North America then were Albertosaurus, Nanotyrannus, Parasaurolophus, Euoplocephalus, Kritosaurus, and Pachyrhinosaurus.


Corythosaurus was a herding animal that may have migratedWhat does migrated mean? from shorelines to higher ground to reproduce

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