National Audubon Society Field Guide to Fossils has more thanĀ 474 color photographs of fossil sponges, corals, trilobites, shells and many others. The photos are arranged by shape and color, making a simple visual key for quick identification. Also included are 33 color photographs of fossil-bearing rocks and outcrop formations, plus 15 maps.

846 pages, 3 3/4 x 7 1/2
full-color photographs, maps