Macrophotograph of the structural detail in a piece of fossilized wood from Sweet Home, Oregon; #3920
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; #2994
Macrophotograph of the structural detail in a piece of polished petrified wood (Species: Araucaria, a conifer, from the Early Triassic, approx 220 million years ago; Madagascar); #3769
