Polished Large Full Round Petrified Tree Fern- Psaronius. Found in a creek bed, Athens Co. Pennsylvanian Age (Upper Carboniferous). This item is in the category “Collectibles\Rocks, Fossils & Minerals\Fossils\Vegetation\Petrified Wood”. The seller is “howard_and_sons” and is located in this country: US. This item can be shipped to United States, Canada, United Kingdom, Denmark, Romania, Slovakia, […]