Discovery of Longfengshaniaceans from the Uppermost Ediacaran (Sinian) in Eastern Yunnan, South China and Its Significances TANG Feng, SONG Xueliang, YIN Chongyu, LIU Pengju, S. M. AWRAMIK, WANG Ziqiang and GAO Linzhi (Institute of Geology, Chinese Academy of Geological Sciences, Beijing 100037, China; Institute of Geosciences, Yunnan Province, Kunming, Yunnan 650051, China; Department of Earth Science, University of California, Santa Barbara, CA 93106, USA; China …