楊鍾健
Yang Zhongjian (also known as C. C. Young) discovered the first "Yunnanosaurus" skeletons in the Lufeng Formation of Yunnan, China. The fossil find was composed of over twenty incomplete skeletons, including two skulls, it was excavated by Tsun Yi Wang. When first discovered, "Yunnanosaurus" was considered to be closely related to "Lufengosaurus", but more recent research by Novas et al. (2011) shows that it is most closely related to "Anchisaurus" and "Jingshanosaurus".