Chasmosaurus

This three-horned dinosaur needed to be well protected - it was on the menu for the T-Rex! Its defence was its horns and thick skull that it could use for charging at its enemies, a bit like a rhinoceros.

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Chas Fact File

Fact File

Pronounced
KAZ-mo-SORE-us

Meaning of name
Chasm lizard because of the large opening on its frill

Length
6 m

Weight
2,700 kg

Diet
Herbivorous

When it lived
Late Cretaceous (73 million years ago)

Where it lived
North America

DINOMAZING FACT!

It’s thought that Chasmosaurus could change colour during the mating season, to make itself more attractive - in a similar way to a chameleon.

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