Biology: The Unity and Diversity of Life (14th Edition)

Published by Brooks/Cole Publishing Co.
ISBN 10: 1305073959
ISBN 13: 978-1-30507-395-1

Chapter 16 - Self-Quiz - Page 267: 9


66 million years ago

Work Step by Step

By the end of the Upper Cretaceous, the dinosaurs had disappeared. This was about 66 million years ago, which coincided with the massive extinction event during this time that wiped out not only the dinosaurs but many marine organisms as well.
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