High-precision Temporal Calibration of the Early Cambrian Biotic and Paleoenvironmental Records: New U-Pb Geochronology from Eastern Yunnan, China.

Kaori Tsukui1, Jahandar Ramezani2, Maoyan Zhu3, Adam C Maloof4, Susannah Porter5, John Moore5, Michael Patterson Eddy1 and Samuel A Bowring1, (1)Massachusetts Institute of Technology, Cambridge, MA, United States, (2)Massachusetts Institute of Technology, Earth, Atmospheric, and Planetary Sciences, Cambridge, MA, United States, (3)Chinese Academy of Sciences, Beijing, China, (4)Princeton University, Department of Geosciences, Princeton, NJ, United States, (5)University of California Santa Barbara, Earth Science, Santa Barbara, CA, United States