Borophagus diversidens

Borophagus diversidens ("devouring glutton") is an extinct species of the genus Borophagus of the subfamily Borophaginae, a group of canids native to North America from the late Miocene epoch through the Pliocene epoch 4.9—1.8 Ma.PaleoBiology Database: Borophagus diversidens, basic info

 References 

Alan Turner, "National Geographic:  Prehistoric Mammals" (Washington, D.C.:  Firecrest Books Ltd., 2004), pp. 112–114.  
Xiaoming Wang, "The Origin and Evolution of the Dog Family"  Accessed 1/30/06.

Further reading

Picture of an Osteoborus skull in a museum, from "World of the Wolf."  (Accessed 6/19/06)
Russell Hunt, "Ecological Polarities Of the North American Family Canidae: A New Approach to Understanding Forty Million Years of Canid Evolution" (Accessed 1/30/06).
Wang et al., "Phylogenetic Systematics of the Borophaginae (Carnivora:Canidae)."  Bulletin of the American Museum of Natural History, No. 243, Nov. 17 1999. (PDF) (Accessed 4/11/06)

Category:Canids
Category:Extinct mammals