In July 2003, paleontologists were on a routine investigation of fossil sites in the park when something caught their attention. It was a very large set of fossil teeth. Careful study revealed that these were the teeth of an ancient hornless rhinoceros - Subhyracodon occidentalis.
NPS Photo by Tom Farrell
Paleontologist Greg McDonald Click Picture for Dr. McDonald's Introduction - Real Media File 857 k
Did You Know? White Penstemon is the most widespread penstemon or beardtongue in the Great Plains. The insides of the blossoms are bearded and often spotted with purple. more...