I was going through some of my boxes of Devonian material the other day and came across some specimens of coalified wood that I'd found a few years back in Kentucky. The fossils were found at a location where some rock had been dumped as fill. I'd been alerted to the location by a member of the Fossil Forum who'd found a piece of fish bone at the same location. I didn't find any bone but these carbonized impressions were pretty cool so I picked up what I could find. I'd forgotten about them until I pulled this flat out of a box.
I have no idea what species of plant they came from but they sort of look like the Calamites stems I find in Pennsylvanian aged rocks. These fossils come from rock that I think belongs to the New Albany Shale which is upper Devonian in age. I do have a piece of petrified wood from the New Albany Shale that I blogged about here, but it does not look quite the same as what I collected.
Here is a panoramic view of the collecting locality as it existed in 2009.