FOSSIL HYRACODON TOOTH - 30 million years old - South Dakota, USA
« backFOSSIL HYRACODON TOOTH
Hyracodon nebrascensis
30 million years old (Oligocene)
Brule Formation. South Dakota, USA
Hyracodon is an extinct mammal that inhabited North America during the Oligocene epoch and is related to the rhinoceros.
It resembled a primitive horse but is best described as a fast-running, hornless rhinoceros.
Size: approx. 5 x 4.5 x 1.5 centimetres
Weight: 37 grams
