Fossil Fraxinus (Ash) Leaf - Green River Formation

This is an Eocene aged fossil leaf from Fraxinus flexifolia an ash tree. The leaf is 2.1" tall (including the stem) and on a piece of shale matrix. It is beautifully preserved with crisp edges and a very dark color. The coloration is speckled and fine details are a it harder to see.

It comes the Green River Formation and the area in Uintah County, Utah. This is the same formation that is famous for producing well preserved fish fossils, but a different member and location.