Ray Troll's Stratigraphic Timescale
Ray Troll is a world-reknowned Alaskan-based artist, who specializes in fish and paleontological art. We love his stuff and think that you will too. Here we present his very cool stratigraphic timescale.

Click the image above to enlarge | Listen to Ray Troll's Ages of Rock | Visit Ray's web site

Below, Kirk Johnson, Director of the Denver Museum of Natural History, and Ray eat breakfast and discuss stratigraphy as they travel the Fossil Freeway.

EARTHTIME is supported by the National Science Foundation.