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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.12

Lived
84 to 72 million years ago3
Late Cretaceous
Fossils found in
Alberta, Canada and Montana, USA132
Food
Plants1
Length
7.7 to 9 m1
For real!Artist's life restoration of Corythosaurus
How Corythosaurus may have looked, by Connor Ashbridge. CC BY-SA 4.0, via Wikimedia Commons. Scientists still argue about colours and details.

When did it live?

Triassic
Jurassic
Cretaceous
252 million years ago20114566, the asteroid

How big was it?

Corythosaurus about 9 m longSchool bus 12 mA grown-up 1.7 m
cool stuff

Fun facts

1

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

2

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

3

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

4

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

5

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

6

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

For dino experts

Scientific name
Corythosaurus
Named by
Brown 19143
Group
Duck-bills
Family / clade
Hadrosauridae3
Classification
Ornithischia > Ornithopoda > Iguanodontia > Hadrosauridae3
Age of the rocks
84 to 72 million years (Campanian)3
Rock formations
Dinosaur Park, Oldman, Judith River3
Countries
Canada, USA3
Fossil records
29 in the Paleobiology Database3
Discovery
Corythosaurus was named by Barnum Brown in 1914 after he found a nearly complete skeleton in Alberta, Canada in 1911.12
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

  1. Corythosaurus (en.wikipedia.org)
  2. Corythosaurus | Natural History Museum (nhm.ac.uk)
  3. Corythosaurus in The Paleobiology Database (CC BY 4.0): age, places, rock formations, classification.

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Also from the Late Cretaceous

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