Macrophotograph of the structural detail in a piece of fossilized wood (Araucarioxylon arizonicum) from Arizona; late Triassic (approx. 225 million years) in age; the state fossil of Arizona; an extinct conifer Image #4085 6144 X 4080 pixels (10.13 MB)
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
