Jeff’s Uncle Roy runs a museum. That means he’s always zooming off to strange places to find ruins and treasure. But Jeff has never gone along—until now.

Fossils are our key to the far past. Remains or even just traces of life from earlier eras have allowed us to reconstruct various times and places far different

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

The Civil War has just ended as a fervent interest in the exploration of fossils in the American West begins. Two paleontologistsOthniel Marsh of Yale College a

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