San Diego Natural History Museum
Home | Visit | About Us | Calendar | Exhibits | Education | Research | Store | Membership | Donate | Search

Geologic Timeline: The last 144 million years of Earth's 4.6 billion year history.

The Exhibition
Educational Resources
Activities Online
Fossil Field Guide
Visit Us


Activities Online Credits

Who Moved the Body?—a dinosaur puzzle

Design and development: Nancy Owens-Renner and Debbie Walden
Flash/website programming: Linda West
Illustrations: Duke Windsor


What Am I?—an interactive study of the fossil evidence

Content development: Sara Aglietti, Lynett Gillette, Nancy Owens-Renner, Katharine Silverman, Jim Stone, and Debbie Walden
Content review: Dr. Thomas Deméré
Flash/website programming: Linda West

Photographs
Armored Dinosaur Dig Site: Paleontology Staff
American Alligator, Jim Stone
Ankylosaur and nodosaur models, Tim Murray
Cuyamaca Lake: Dr. Michael J. Walawender
Cycads: Jim Melli
Dawn Redwood: Courtesy of the Missouri Botanical Garden PlantFinder
Erosion, Courtesy of the American Geological Institute
Gila Monster Skull: Bradford Hollingsworth
Sea Lettuce: Jim Stone
All other photographs: François Gohier

Illustrations
Duke Windsor

Pleistocene Epoch 1.8 million-10,000 years ago.
Pliocene Epoch 5-1.8 million years ago.
Miocene Epoch 24-5 million years ago.
Oligocene Epoch 34-24 million years ago.
Eocene Epoch 53-34 million years ago.
Paleocene Epoch 65-55 million years ago.
Cretaceous/Tertiary Boundary Rock, 65 million years ago.
Cretaceous Period 144-65 million years ago.
Earth's history began 4.6 billion years ago.
MYA = million years ago.

Back to Activities Online

Search | Site Index | Home | Museum Guide (PDF)

© San Diego Natural History Museum