North America, Western United States, South Dakota, Scenic, Upper Brule Formation, Oligocene, ca. 28.1 million to 23 million years ago. A fossilized upper cranium and lower mandible from a prehistoric oreodont with most of the teeth intact! A bar has been added to the jawbone for mounting on a stand to create an open mouth pose, but currently the upper fits comfortably on the lower in a resting position. The teeth are an interesting high crown shape; pointy and triangular, and their name translates to "mountain tooth" and these mammals were herbivores, roaming the prehistoric North America grasslands in herds grinding up the plants with their "mountainous" teeth. Size (upper): 7" L x 4.75" W x 2.75" H (17.8 cm x 12.1 cm x 7 cm)
Provenance: private New Jersey, USA collection
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#172128
Condition
Professionally prepared and restored. Restoration and infill to gaps and fissures, repairs to tooth crowns, with some chips and losses. Loss to orbit bone left side. Wooden bar added to mandible for support on stand.