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Corythosaurus

Say it: kuh-RITH-oh-SORE-us

Name means: “helmeted lizard”1

Ate: PlantsDuck-billsLate Cretaceous

Corythosaurus was a duck-billed dinosaur that lived about 77 to 75 million years ago. It had a tall, hollow crest on its head that looked like a helmet. This dinosaur used its beak to munch on soft plants and leaves.1 2

Lived

84 to 72 million years ago5

Late Cretaceous

Fossils found in

Alberta, Canada and Montana, USA1 5 2

Food

Plants1

Length

7.7 to 9 m1

Weight

2.5 tonnes to 3.82 tonnes1 3

estimates from various sources

Height

2 m3

at the hips

When did it live?

Triassic

Jurassic

Cretaceous

252 million years ago20114566, the asteroid

How big was it?

How long was it?

How tall was it?

at the hips

How heavy was it?

as heavy as 2.5 cars

as long as 2 cars parked in a rowas long as 50 bananas end to endas heavy as 130 big dogsas heavy as 760 watermelonsabout as tall as a door

How big was Corythosaurus compared to YOU?

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cool stuff

Fun facts

Corythosaurus is named after its crest, which looks like a Corinthian helmet worn by ancient Greek soldiers.1

The crest was hollow and connected to the nose. Scientists think Corythosaurus used it to make loud calls, like a trombone.1

One nearly complete skeleton was found with impressions of its skin, showing it had polygonal scales.1

Corythosaurus lived alongside other dinosaurs like the tyrannosaur Gorgosaurus and the horned dinosaur Centrosaurus.1

The first Corythosaurus fossil was discovered in 1911 by Barnum Brown in Alberta, Canada.1

Corythosaurus had a beak that was shallow and delicate, so it probably ate only the softest plants.1

AI-made picture of Corythosaurus — An AI-made picture of how Corythosaurus might have looked, made by a computer from what scientists know. It is a guess: the real animal may have looked different, and nobody knows its true colours.

you asked

Most asked questions about Corythosaurus

?How big was Corythosaurus?

Corythosaurus was about 7.7 to 9 metres (25 to 30 feet) long and weighed around 2.5 to 3.8 tonnes (2.8 to 4.2 short tons).1 2

?What did Corythosaurus eat?

Corythosaurus was a herbivore that ate soft plants. One fossil even had its last meal preserved, which included conifer needles, seeds, twigs, and fruits.1

?Did Corythosaurus have feathers?

No, Corythosaurus did not have feathers. Fossils show it had polygonal scales on its skin, like a reptile.1 4

?Why did Corythosaurus have a crest?

Scientists think the hollow crest was used for making loud calls, like a trombone. It helped Corythosaurus communicate with others.1

?When did Corythosaurus live?

Corythosaurus lived during the Late Cretaceous period, about 77 to 75 million years ago.1 2

?Where was Corythosaurus found?

Corythosaurus fossils have been found in Canada (Alberta) and the United States.2 1

?Was Corythosaurus a dinosaur?

Yes, Corythosaurus was a type of duck-billed dinosaur called a hadrosaur.1 2

?Could Corythosaurus swim?

Nobody knows for sure, but like many duck-billed dinosaurs, it may have been able to swim. Its webbed feet are not confirmed from fossils.1

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For dino experts

Scientific name: Corythosaurus
Named by: Brown 19145
Group: Duck-bills
Family / clade: Hadrosauridae5
Classification: Ornithischia > Ornithopoda > Iguanodontia > Hadrosauridae5
Age of the rocks: 84 to 72 million years (Campanian)5
Rock formations: Dinosaur Park, Oldman, Judith River5
Countries: Canada, USA5
Fossil records: 29 in the Paleobiology Database5
Discovery: Corythosaurus was named by Barnum Brown in 1914 after he found a nearly complete skeleton in Alberta, Canada in 1911.1 2
Still debated: Scientists still debate whether some species of Corythosaurus, like C. intermedius, are really separate or just different ages or sexes of the same species.1

Where the facts come from

Corythosaurus (en.wikipedia.org)
Corythosaurus | Natural History Museum (nhm.ac.uk)
enchantedlearning.com (enchantedlearning.com)
Corythosaurus: Duck Billed Dinosaur Skeleton (amnh.org)
Corythosaurus in The Paleobiology Database (CC BY 4.0): age, places, rock formations, classification.

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