Trilobites exhibit prehistoric secrets

It's new, but it's old. "Trilobite Treasures: Arthropods of the Ancient Seas" is a walk on the wild side to prehistoric times. This temporary exhibit at the Family Museum in Bettendorf, Iowa, offers a chance to view fossils more than 320 million years old. Of particular interest are the Trilobites from the Kchodl collection, more than 200 prehistoric specimens and artifacts from all over the world. Trilobites are hard-shelled, segmented creatures that were crawling in the Earth's ancient seas by the thousands, but became extinct well before the dinosaurs roamed. They fossilized easily and so have left an extensive record of their existence.