Macrophotograph of the structural detail in a piece of fossilized wood (Araucarioxylon arizonicum) from the Chinle Formation in Utah; late Triassic (approx. 225 million years) in age; an extinct confier Image #4102 6144 X 4080
Macrophotograph of the structural detail in a piece of fossilized wood from Sweet Home, Oregon Image #3918
Macrophotograph of the patterns and colors in a piece of petrified wood Image #3984
