Why is it that the image of the best fossil I find in any given locality turns out blurry? It must be the camera, and not my technique. At any rate, on a recent trip to the Tucson Mountains, we encountered a nice outcrop containing thousands of mixed broken bivavle shells. This layer can be found in several locations in the Tucson Mountains, but is seldom traceable for more than a few hundred feet. In amongst the coquinoidal limestone was a nice plant stem. I managed to get several fair images of the limestone, but all of the plant stem images were somewhat blured. I fixed the best image up as best I could and posted it here. This location is inside Tucson Mountain Park, and is a "No Collect" area. I guess I'll be forced to make another trip. We also stopped by a local outcrop of Horquilla Limestone and photographed a typical assemblage of Pennsylvanian age invertebrates. You can see all of the images here.