| Representative mineralized vertebrate fossils observed in Pliocene Coso Formation, Coso Mountains, California. Partial jaw (upper left), teeth, and limb fragments from a horse--between 3.5 and 3.0 million years old. Original photograph snapped with a Minolta 35mm camera; this image was created by photographing that orignal picture with a Nikon CoolPix 995 digital camera. |