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 #4068 4487 X 4584 pixels
Macro photograph of a sliced Goniatite fossil showing the interior chambered structure of the shell; Devonian in age (approx. 400 million yrs old); from the Atlas Mountains in Morocco Image #3117 6144 X 4080 pixels
Macro photograph showing the internal structure of a cross-sectioned piece of fossilized tree fern (Tietea singularis): Permian in age; from Tocantins State, Brazil Image #3163 5935 X 4783 pixels
