TORNQVIST, Torbjörn E., Earth and Environmental Sciences, Tulane University, 6823 St. Charles Ave, New Orleans, LA 70118, tor@tulane.edu, YU, Shiyong, Earth and Environmental Sciences, Tulane University, 6823 St. Charles Avenue, New Orleans, LA 70118-5698, WOLSTENCROFT, Martin, Department of Earth Sciences, University of Ottawa, Ottawa, K1N 6N5, Canada, KULP, Mark A., Dept. of Earth & Environmental Sciences and Pontchartrain Institute for Environmental Sciences, University of New Orleans, 2000 Lakeshore Drive, New Orleans, LA 70148, MILNE, Glenn A., Department of Earth Sciences, University of Ottawa, Ontario, ON K1N 6N5, Canada, and SHEN, Zhixiong, Department of Earth and Environmental Sciences, Tulane University, 6823 St. Charles Ave, New Orleans, LA 70118