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Last updated: 3 august, 2010 - 11:09 GMT

Did the Triceratops dinosaur ever really exist?

Computer generated image of two Triceratops locked in combat

Triceratops' distinctive look made it a favourite among some dinosaur fans

Research published in the Journal of Paleontology says the three-horned dinosaur, Triceratops, never actually existed as a species, but was in fact the juvenile version of a creature called Torosaurus.

Dr Jack Horner, a palaeontologist at the Museum of the Rockies in Montana, was part of the team that carried out the research.

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First broadcast 3 August 2010

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