RUNNING RHINO - PART OF JAW WITH TOOTH - OLIGOCENE, SOUTH DAKOTA.

Hyracodon nebracensis Leidy

Section of lower jaw from a juvenile 'Running Rhino' with one complete tooth in position.

Oligocene, Brule Formation, Scenic Member.
Shannon County, South Dakota, USA.

Jaw : 3.5 x 3.5 x 1.8 cm.