Cut pearlized nautilus shell converted to black and white Image #1506 4080 X 5568 pixels
Macro photograph of patterns and colors in a piece of petrified wood (Woodworthia species) from the Chinle Formation in Arizona; approx. 225 million years old Image #2615 4689 X 5977 pixels
Macro photograph of the exterior surface of a fossilized ammonite (Perisphinctes sp.); existed during the Late Jurassic period approx. 160 million yrs ago; Madagascar Image #3104 3200 X 4800 pixels
