Fall Fossils

Did a fossil hunt for a couple hours this afternoon.  The wood had some pretty spots.  Having not hunted this particular good location for Pennsylvanian plants for about a year and a half, I was hoping that a bunch of new fossils would have worked out of the creek bed.  The creek bed was dry, but the dead leaves and dust made hunting challenging - can you spot the fossil in the picture?  However, when I took the dusty fossils that I found back home and cleaned them up in water I found a couple nice surprises, including a sizable bark impression.  I'm guessing it's something like Lepidodendron, but the leaf scars are small, less than a quarter inch long.