CONTENTS OF TABLE WHAT WERE MOSASAURS THE LIVES OF MOSASAURS FOSSILS AND EXTINCTION GET TO KNOW THE MOSASAUR 20 GLOSSARY TO LEARN MORE INDEX 4 10 16 22 23 24
MOSASAURS WERE WHAT Pronunciation MOH-zuh-SORE Mosasaurs were huge ocean reptiles They first appeared about 100 million years ago
map of the world Late Cretaceous period Mosasaurs lived during the Late Cretaceous period This was at the end of the Mesozoic era
