History: Wyoming's Prehistory – Sheridan Media
Skull at the Museum at the Bighorns, Sheridan. (vannoy photo) Wyoming’s landscape wasn’t always sagebrush and short grass, with rolling hills and steep mountains. At one time Wyoming was a tropical paradise, full of exotic reptiles, flying lizard-like creatures, and, later, huge mammoths and sa
United States University Of Wyoming American Museum Of Natural History New York Pine Bluffs Rock Creek
Source: sheridanmedia.com