What is "yunnanodon"

Yunnanodon ("Yunnan tooth", from China's Yunnan province where it was discovered, and the Greek don(ti) (δόντι) meaning "tooth") was a genus of non-mammalian therapsid 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. A tritylodont, it represents one of the few non-mammalian therapsids to survive the Triassic–Jurassic extinction event. It was small, with adult skulls only reaching 36 to 47mm (1.4 to 1.8 inches) in length.