EXTINCT RHINO MANDIBLE. ...

Description

EXTINCT RHINO MANDIBLE
Subhyracodon occidentalis
Oligocene
White River Badlands, South Dakota, USA
A member of the Rhinoceratidae family, the Subhyracodon was a true Rhinoceras, a medium-sized herbivore that roamed the grasslands of South Dakota approximately 33 million years ago. Although it had no horn, it did have a distinctive pair of nasal ridges, and large, broad teeth ideal for chewing vegetation. This rare lower jaw boasts full dentition, apart from the protruding incisors and the tip of the jaw, each tooth with lovely dark gray enamel coverage and distinctly worn upper surface that allows a fascinating view of the inner structure. The bones themselves have been painstakingly returned to their original configuration from fragments, and bear a fine chalky patination and good texture, 13¾ inches long, raised on an ebonized metal display stand, 16½ inches high overall.

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