A huge 75-foot-tall square boulder deep in Wyoming’s Bighorn Mountains has been baffling people since it was discovered.

“You can see the clam shell fossils on the surface, we find the occasional shark’s tooth, and we've got rock hunters out here always looking in the limestone cuts, looking for sharks ...

The Earth: a ringed planet, much like Saturn, surrounded by a hula hoop of asteroids. The summit of Mount Everest: a tropical ...

Anyone who gets six of the 12 activities on a passport stamped will receive a free 450-million-year-old Ordovician fossil. Young children will take home a small toy dinosaur from the Dino Dig.

Cemvision has begun piloting the production of fossil-free cement made entirely from recycled materials. Instead of using virgin limestone and fossil fuels, the Swedish company recycles by-products ...

The limestone caves are filled with fossils that date back millions of years. Some guided tours offer educational insights into the geological history, showcasing ancient marine fossils within the ...

Credit: Limestone caves like the ones here are often where megafauna fossil remains are found (photo: CJA Bradshaw, Flinders University) ...

The entrance that's used today was constructed then. The cave has not only limestone structures, but also plant fossils. The cave can be visited all year round. István Cave, a large dripstone cave (in ...

the microfossils dating to the Lower Ordovician Period, approximately 480 million years ago, fill an approximately 25-million-year gap in knowledge by reconciling the molecular clock—or pace of ...

Seamless Wikipedia browsing. On steroids. Every time you click a link to Wikipedia, Wiktionary or Wikiquote in your browser's search results, it will show the modern Wikiwand interface. Wikiwand ...