Borophaginae
Extinct subfamily of carnivores
Borophaginae
The extinct Borophaginae form one of three subfamilies found within the canid family. The other two canid subfamilies are the extinct Hesperocyoninae and extant Caninae. Borophaginae, called "bone-crushing dogs", were endemic to North America during the Oligocene to Pliocene and lived roughly 34–2.5 million years ago, existing for about 31.5 million years.
Read on Wikipedia · Image Jeff Kubina from Columbia, Maryland, CC BY-SA 2.0
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