Macro photograph of the zig-zag joining of the two halves of a fossilized oyster shell (Alectryon carinata) from Madagascar; this species existed during the Cretaceous period Image #2994 6144 X 4912 pixels
Closeup of the structural detail in a piece of colorful petrified wood from Arizona; Araucarioxylon arizonicum from the Chinle Formation; Late Triassic in age ((roughly 225 million years); the state fossil of Arizona Image #4218 4080 X 6055 pixels (6.3 MB)
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)
