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The largest dinosaur that lived underwater was the Liopleuradon (LIE-OH-PLOO-RO-DON). The Liopleuradon was a carnivore. It was 25 m (82 ft.) long. It also lived in the mid to late Jurassic period throughout Europe. Liopleuradon was a short-necked plesiosaur. One of the other water dinosaurs that it ate, was the Ophthalmosaurus (OFF-THAL-MOH-SAW-RUS). It was a dolphin-like hunter.

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14y ago

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