To understand how geologists determine a rock's age and origin, first understand the geologic time scale. The Precambrian is the largest chunk of this scale.

Aug 2, 2009 - Alexandra Matiella Novak

For a fun Eastern Oregon day trip, visit the spectacular Painted Hills, get a history lesson at a historic ranch house and view hundreds of fossils.

Jul 2, 2010 - Caitlin Sessa

Knightia eocaena was a herring that lived about 50 million years ago. Its fossils dominate the famous Green River Formation of Wyoming and other states.

Nov 26, 2011 - Kevin Schindler

The history of Canada goes back to Nova Scotia as a tropical land, lush with greenery, animals and bug life. Hundreds of millions of years later, fossils tell the story.

May 21, 2009 - Susanna McLeod

A Paleontologist husband and wife team recently discovered what seems to be a new type of anklyosaur, shedding light on the evolution of nature's army tank.

Nov 2, 2009 - Kristina Bjoran

Try a Cappadocia holiday in this UNESCO World Heritage Site, carved from a volcanic lava field and steeped in Turkish culture, art, and ancient history.

Jun 22, 2010 - Jen L. Jones