Fossil Celtus (hackberry) Leaf - Green River Formation

This is a fossil Celtus mccoshii leaf that is Eocene in age and comes from the Green River Formation. It has nice dark preservation. There are two crack repairs that run through the leaf.

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.