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VOICE OVER: Rebecca Brayton
Script written by George Pacheco.

There were many deadly predators beneath the waves during prehistoric times. Between a razor-toothed monster called Predator X, a prehistoric shark called Cretoxyrhina and the giant Shastasaurus, these were deadly sea creatures from the time of the dinosaurs. WatchMojo counts down ten sea monsters so scary you won't BELIEVE they once existed.

Special thanks to our users ibriers 1, MikeMJPMUNCH and Joao S for suggesting this idea! Check out the voting page at http://www.WatchMojo.comsuggest/Top%2010%20Terrifying%20Prehistoric%20Sea%20Monsters read more...

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