Desmocyon is an extinct genus of the Borophaginae subfamily of canids native to North America. It lived from the Late Oligocene to the Early Miocene, 24.8—16.3 Mya, existing for approximately .Desmocyon, fossilworks It is a rarely found genus, with fossil deposits only occurring in western Nebraska, Wyoming, New Mexico and north Florida. It is regarded as a primitive, transitional member of the Borophagini tribe.
References
zipcodezoo.com The Biology and Conservation of Wild Canids by David W. Macdonald and Claudio Sillero-Zubiri; page 42