This is an amazing plate showing the fossilized remains of Uintacrinus socialis crinoids.  Picture taken at the Smithsonian National Mus...

Primitive Worlds is a fossil company in Rochester, New York that appears to run a private quarry that harvest and sell Rochester Shale ...

Just finished reading Uranium: War, Energy, and the Rock that Shaped the World by Tom Zoellner (Viking,2009). The book illuminates va...