Ailurarctos

thumb|Ailurarctos left radial sesamoid fossil.

Ailurarctos ("cat bear") is an extinct genus of panda from the Late Miocene of China, some 8 million years ago. Fossils attributed to Ailurarctos lufengensis, including isolated teeth discovered in the Lufeng Bsain of Yunnan Province, represent some of the earliest evidence of the giant panda lineage in China.