2015 GSA Annual Meeting in Baltimore, Maryland, USA (1-4 November 2015)

YOHLER, Ryan Michael, Geological Sciences, Indiana University - Bloomington, 1001 E 10th Street, Bloomington, IN 47405, NJAU, Jackson K., Geological Sciences, Indiana University, 1001 E. Tenth Street, Bloomington, IN 47405 and BROPHY, J.G., Department of Geological Sciences, Indiana University, Bloomington, 1001 East 10th Street, Bloomington, IN 47405, ryohler@indiana.edu

ASCARI, Silvia H, Geological Sciences, Indiana University, 1001 E 10th St, Bloomington, IN 47405, sascari@indiana.edu

KEARNEY, John¹, JOHNSON, Claudia C.¹, NJAU, Jackson¹, TOTH, Nick² and SCHICK, Kathy², (1)Geological Sciences, Indiana University, 1001 E. 10th St, Bloomington, IN 47405, (2)Stone Age Institute, Indiana University, PO Box 5097, Bloomington, IN 47407, kearneyj@indiana.edu

DEAN, Jonathan R.¹, ASRAT, Asfawossen², COHEN, Andrew S.³, FOERSTER, Verena⁴, JUST, Janna⁵, LAMB, Henry F.⁶, LENG, Melanie⁷, SCHÄBITZ, Frank⁵, TRAUTH, Martin H.⁴ and VIEHBERG, Finn⁵, (1)British Geological Survey, Keyworth, Nottingham, NG12 5GG, United Kingdom, (2)Addis Ababa University, Addis Ababa, Ethiopia, (3)Department of Geosciences, University of Arizona, Tucson, AZ 85721, (4)Potsdam University, Potsdam, Germany, (5)University of Cologne, Cologne, Germany, (6)Institute of Geography and Earth Sciences, Aberystwyth University, Aberystwyth, SY23 3DB, United Kingdom, (7)NERC Isotope Geosciences Laboratory, British Geological Survey, Keyworth, Nottingham, NG12 5GG, United Kingdom, jond@bgs.ac.uk

THOMPSON-MUNSON, Megan, Department of Geosciences, University of Massachusetts, 611 N. Pleasant St, Morrill Science Center, Amherst, MA 01003, CASTAÑEDA, Isla, Department of Geosciences, University of Massachusetts, 611 N. Pleasant St, Morrill Science Center II, Amherst, MA 01003, LUPIEN, Rachel, Earth, Environmental and Planetary Sciences, Brown University, Providence, RI 02912 and RUSSELL, James M., Department of Earth, Environmental and Planetary Sciences, Brown University, Providence, RI 02912, mthompsonmun@umass.edu

ORTIZ, Kevin, Geosciences, University of Arizona, Dept. of Geoscience, 1040 E. 4th Street, Tucson, AZ 85721, ARROWSMITH, J. Ramon, School of Earth and Space Exploration, Arizona State Univ, Tempe, AZ 85281-1404, COHEN, Andrew, Department of Geosciences, University of Arizona, Tucson, AZ 85721, FEIBEL, Craig S., Earth and Planetary Sciences, Rutgers University, 610 Taylor Road, Piscataway, NJ 08854, DEINO, Alan, Berkely Geochronology Lab, 2455 Ridge Road, Berkeley, CA 94709, HILL, Andrew, Peabody Museum, Yale University, 10 Sachem Street, New Haven, CT 06511, BECK, Catherine C., Geosciences Dept., Hamilton College, 198 College Hill Rd, Clinton, NY 13323, CAMPISANO, Christopher J., Institute of Human Origins, School of Human Evolution and Social Change, Arizona State University, Tempe, AZ 85287, VALACHOVIC, Joseph, Geoscience, University of Arizona, 1040 E 4th Street, Tucson, AZ 85721 and KINGSTON, John D., Department of Anthropology, University of Michigan, 101 West Hall, 1085 S. University Ave, Ann Arbor, MI 48109-1107, kevinortiz@email.arizona.edu

GRAVINA, Anna Naomi, Department of Geosciences, University of Arizona, Tucson, AZ 85716, FEIBEL, Craig S., Geological Sciences and Anthropology, Rutgers Univ, 131 George St, New Brunswick, NJ 08901-1414 and BECK, Catherine C., Geosciences, Hamilton College, Clinton, NY 13323, renji_518@hotmail.com

STOCKHECKE, Mona, University of Minnesota Duluth, Large Lakes Observatory, 2205 E 5th St, Duluth, MN 55812, POTTS, Richard, Human Origins Program, Smithsonian Institution, National Museum of Natural History, NHB 112, Washington, DC 20560-0112, BROWN, Erik T., Large Lakes Observatory & Dept of Geol. Sci, University of Minnesota Duluth, RLB-109, 10 University Drive, Duluth, MN 55812, BEHRENSMEYER, Anna K., Department of Paleobiology, Smithsonian Institution, National Museum of Natural History, NHB MRC 121, P.O. Box 37012, Washington, DC 20013-7012, DOMMAIN, Rene, Human Origins Program, Smithsonian Institution, Washington, DC 20013, DEINO, Alan, Berkeley Geochronology Center, Berkeley, CA 94709 and COHEN, Andrew S., Department of Geosciences, University of Arizona, Tucson, AZ 85721, mstockhe@d.umn.edu

CAPPIO, Laura, University of Minnesota Duluth, Large Lakes Observatory, Duluth, MN 55812, BROWN, Erik T., Large Lakes Observatory & Dept of Geol. Sci, University of Minnesota Duluth, RLB-109, 10 University Drive, Duluth, MN 55812, STOCKHECKE, Mona, University of Minnesota Duluth, Large Lakes Observatory, 2205 E 5th St, Duluth, MN 55812, POTTS, Richard, Human Origins Program, Smithsonian Institution, National Museum of Natural History, NHB 112, Washington, DC 20560-0112 and DOMMAIN, Rene, Human Origins Program, Smithsonian Institution, Washington, DC 20013, cappi006@d.umn.edu