SHENG, Qingyi¹, CHEN, Jitao², WANG, Xiangdong², and HUBER, Brian T.¹, (1) Department of Paleobiology, Smithsonian Institution, 10th and Constitution Ave, Washington, DC 20013-7012, shengqingyi@gmail.com, (2) Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, 39 East Beijing Road, Nanjing, 210008, China

DAVYDOV, Vladimir, Department of Geosciences, Boise State University, USA and Kazan Federal University, Russia, 1910 University Drive, Boise, ID 83725, vdavydov@boisestate.edu

MUEHLBAUER, Robert and KELLY, D. Clay, Department of Geoscience, University of Wisconsin, 1215 W. Dayton Street, Madison, WI 53706, rmuehlbauer@wisc.edu

DAMERON, Serena, Department of Geosciences, University of Massachusetts, 611 North Pleasant Street, Amherst, MA 01003, sndameron@gmail.com, LECKIE, R. Mark, University of Massachusetts Amherst, Department of Geosciences UMass, 611 N. Pleasant St, Amherst, MA 01003, MACLEOD, Kenneth G., Department of Geological Sciences, University of Missouri-Columbia, Columbia, MO 65211, and THOMAS, Debbie, Department of Oceanography, Texas A&M University, 3146 TAMU, College Station, TX 77843-3146

DE MELLO, Renata M., Geosciences, University of Massachusetts, 611 North Pleasant St - Geosciences Dept, University of Massachusetts, Amherst, MA 01003-9297, renatamouramello@yahoo.com.br, LECKIE, Mark, Dept. of Geosciences, Univ of Massachusetts, 611 North Pleasant Street, Amherst, MA 01003, and THOMAS, Ellen, Geology and Geophysics and Department of Earth and Environmental Sciences, Yale University and Wesleyan University, P O Box 208109, New Haven, CT 06520-8109

FRAASS, Andrew, Department of Geoscience, University of Massachusetts - Amherst, Amherst, MA 01375, afraass@geo.umass.edu, LECKIE, R. Mark, Dept. of Geosciences, Univ of Massachusetts, 611 North Pleasant Street, Amherst, MA 01003, and LOWERY, Christopher M., Department of Geosciences, University of Massachusetts, 611 N. Pleasant St, Amherst, MA 01003