4.7" Hyracodon (Running Rhino) Jaw Section - South Dakota

This is a 4.5" long jaw section of Hyracodon nebraskensis. It was collected from the the Brule Formation in South Dakota and would be approximately 32-34 million years old. There are four molars still embedded in the jaw. There are two repaired cracks in the jaw section.

#{hydracodon}