This book tells the story of Tylosaurus, which swam in the prehistoric seas between 87 and 82 million years ago. It was a fierce marine reptile that used its sharp teeth and huge jaws to feed on sharks and other marine reptiles, such as plesiosaurs, as well as fish. A Tylosaurus could grow as long as 50 feet (15 meters) and was a superb swimmer.

Tylosaurus 2011, Crabtree Publishing Company, New York, NY

ISBN-13: 9780778718055

Hardcover

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Tylosaurus 2011, Crabtree Publishing Company, New York, NY

ISBN-13: 9780778718185

Trade paperback

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