| Top and bottom--Two views of the same extinct stromatoporoid--an extinct calcareous sponge--observed in the Middle Devonian section of the Middle to Upper Devonian Lost Burro Formation at Lost Burro Gap in Death Valley National Park, Inyo County, California. Image at top is a "head-on" perspective of the top of the two conical structures seen in photograph at bottom. Both photographs taken with a Nikon CoolPix 995 digital camera and eventually edited and processed with photoshop (creating the black background, for one). |