Fossiliferous Shale
July 7, 2024
File:Fossil plants in carbonaceous shale (top of Pottsville Formation, Middle Pennsylvanian; old coal mine ENE of St. Clair, eastern Pennsylvanian, USA) 1 (15251791316).jpg - Wikimedia Commons Fossiliferous chert stock photo. Image of epidosite - 122742106 File:Fossiliferous sulfidic shale (Kupferschiefer Formation, Upper Permian; near Eisleben, Germany) 1 (45787351935).jpg - Wikimedia Commons Fossiliferous Shale
