"Amazing fact-filled story tells how prehistoric animals survived and thrived!"--Cover.
Bibliography
Includes bibliographical references and index.
Summary
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 and was a superb swimmer.