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Proceratosaurus skull (NHM)
Proceratosaurus was discovered in Gloucestershire
Scientists have identified a skeleton which could be related to the most terrifying dino of all, the T. rex.
The fossil of a dinosaur skull was discovered in Gloucestershire at the start of the last century.
The skull is about 30 centimetres long and experts think it is a close relative of the Tyrannosaurus rex.
And this dinosaur called Proceratosaurus is pretty old too. Scientists say it roamed the earth around 165 million years ago.
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The two-legged, meat-eating dino would have measured about three metres long and weighed up to 50 or 60kg.
What the Tyrannosaurus rex would have looked like (BBC) What the Tyrannosaurus rex would have looked like (BBC)
Scientists have used computers to come up with a picture of what they think the dinosaur might have looked like.
The well-preserved fossil of the skull is now being kept at London's Natural History Museum and it will probably feel quite at home there as it's thought this dino might have had British roots.
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