Dinosaur Timeline

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The dinosaurs lived many millions of years ago. About 65 millions years ago, the dinosaurs experience a mass extinction. The cause is believed to be a great volcanic eruption which led to changes on Earth, such as global warming, which led to their extinction. The following timeline shows several of the geological periods of the dinosaur.

Web Sites about Dinosaurs:

Discovery Channel Dinosaur Central - Comprehensive Guide to Dinosaurs.