Eocene Period, 58-36 million years BP. A shale matrix displaying four fossil leaves from the Green River Formation, Uintah County, Utah, USA, including Magnolia ceoxylon (Magnolia), Populus cinnamonoides (Poplar), Allophylus and Betula (Birch"). 2.7 kg, 29.5cm (12"). From an old Bristol paleontological collection; acquired 1950s-1960s. The Green River Formation holds one of the world’s richest deposits of fossil leaves, plants, vines and aquatic vegetation. [No Reserve] Fine condition.