"About 15 metres long and weighing 45 tonnes, the creature is a new species of pliosaur, and ruled the Jurassic seas some 147 million years ago.
Predator X had a head twice the size of Tyrannosaurus rex and its bite had four times the force, at around 15,000 kilograms (33,000 pounds). Its teeth were each around 30 centimetres (1 foot) long."
Fossil of 'ultimate predator' unearthed in Arctic @ New Scientist
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