Complete beginner's guide, with vertebrate and invertebrate fossil descriptions.

One of the greatest mysteries in reconstructing the history of life on Earth has been the apparent absence of fossils dating back more than 550 million years. W

Fishes have a unique evolutionary history that stretches back in time more than 450 million years. They are incredibly ancient-older than the dinosaurs-and incl

Dig into this photo-packed Penguin-Smithsonian book about fossils—and find out what was going on in our world. Aren't you curious about what Earth was like lo