Macro photograph of a cross-sectioned dinosaur bone showing the interior cellular structure (unidentified Sauropod from the late Jurrasic period (150 million yrs ago)); Colorado Image #3334 4800 X 3200 pixels
Macrophotograph showing the structural detail in a whale bone fossil from Oregon Image #4043 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
