An extinct marine invertebrate found in Morocco. Existed during the Cretaceous period. Image #2197 4716 X 3096 pixels
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 #4078 6115 X 4061 pixels 6115 X 4061 pixels
