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Meet the spinosaurus – a massive, water-living dinosaur

University of Chicago Paleontologist Paul C. Sereno looks inside the jaws of a 50-foot life-size model of a Spinosaurus dinosaur at the National Geographic Society exhibit in Washington, Wednesday, Sept. 10, 2014.
University of Chicago Paleontologist Paul C. Sereno looks inside the jaws of a 50-foot life-size model of a Spinosaurus dinosaur at the National Geographic Society exhibit in Washington, Wednesday, Sept. 10, 2014. AP Photo/Pablo Martinez Monsivais

Picture the fearsome movie creatures of Jurassic Park crossed with the shark from Jaws. Then super-size to the biggest predator ever to roam Earth. Now add a crocodile snout as big as a person and feet like a duck’s. The result gives one some idea of a bizarre dinosaur scientists have just unveiled, called the spinosaurus.

READ MORE: Massive ‘fearless’ dinosaur from Argentina reveals secrets of behemoths

Lead discoverer Nizar Ibrahim of the University of Chicago said it’s so weird that studying it was like working on an extraterrestrial.

A 50-foot life-size model of a Spinosaurus dinosaur at the National Geographic Society in Washington, D.C. AP Photo/Pablo Martinez Monsivais

The 15-metre-long predator is the only known dinosaur to live much of its life in the water.

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Scientists had some bones from the beast already, but the new skeleton discovery forced a major rethinking of what it looked like some 95 million years ago.

The result was described Thursday in the journal Science.

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