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 #4067 6144 X 4080 pixels
Macro photograph of the patterns in a piece of fossilized oak from Oregon; Miocene in age Image #3416 4745 X 3200 pixels
Macro photograph of the patterns in a piece of fossilized oak from Oregon; Miocene in age Image #3415 4800 X 3200 pixels
