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
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
