Yunnanodon ("Yunnan tooth", from China's Yunnan province where it was discovered, and the Greek odon (á½ÂôÃÂý) meaning "tooth") is an extinct genus of tritylodontid mammaliamorphs that lived in China during the Sinemurian stage of the Early Jurassic period. Its specific name brevirostre is Latin for "short-beaked" (brevis ("short") + rostrum ("beak")).
Yunnanodon was discovered in the Lower Lufeng Series, in Yunnan Province, China. As a tritylodontid, it belongs to one of the few cynodont groups to survive the TriassicâÂÂJurassic extinction event. It was small, with adult skulls only reaching in length.