Guangxicyon

Guangxicyon is a medium-sized, extinct genus of amphicyonid carnivoran, or "bear dog," which inhabited southern China during the Late Eocene. It is notable for being the oldest member of its family known from Asia, and is characterized by a shortened face and atypical, bunodont dentition. It inhabited a subtropical forest shaped by monsoon climate not unlike the one present in the region where it was found today. Only a single species, Guangxicyon sinoamericanus, is known.

== Discovery and taxonomy == The only fossils attributable to Guangxicyon sinoamericanus were originally found in 1983 in Late Eocene rocks from the Baise (also known as Bose) Basin belonging to the Nadu Formation, and include a mandible, a tibia, and a humerus. It was first published as Guangxicynodon sinocaliforniae, though this turned out to be a nomen nudum, before being officially described in 2003. The genus name is a reference to the province of Guangxi, where it was discovered, while the species name honors the joint Sino-American research team that discovered it.