Visitors move forward in time 100 million years as they travel from the Jurassic Hall into the Eocene Gallery. The gallery features rock layers found primarily south of town. These rocks were fomed by rivers and streams flowing into a vast lake named Unita. Visitors will marvel at the wall of leaves, some so exquisitely preserved that all the minute veins are still visible. View the fossils of turtles, crocodiles, small primates and the massive beast Uintatherium; a six-horned saber tusked giant.