GINGERICH, Philip D., University of Michigan Museum of Paleontology and Department of Earth and Environmental Sciences, University of Michigan, Ann Arbor, MI 48109, gingeric@umich.edu, gingeric@umich.edu

LIDGARD, Scott, Department of Geology, Field Museum, 1400 S. Lake Shore Dr, Chicago, IL 60605 and HOPKINS, Melanie, Museum für Naturkunde, Invalidenstrasse 43, Berlin, 10115, Germany, slidgard@fieldmuseum.org, slidgard@fieldmuseum.org

SPRINKLE, James, Department of Geological Sciences, Jackson School of Geosciences, University of Texas, 1 University Station C1100, Austin, TX 78712-0254 and WILBUR, Bryan C., Natural Sciences Division, Pasadena City College, 1570 E. Colorado Blvd, Pasadena, CA 91106, echino@jsg.utexas.edu, echino@jsg.utexas.edu

ATWOOD, James W., Earth and Planetary Sciences, University of Tennessee, 306 Earth and Planetary Sciences Building, Knoxville, TN 37996, WATERS, Johnny A., Department of Geology, Appalachian State University, 572 Rivers Street, Boone, NC 28645 and SUMRALL, Colin D., Department of Earth and Planetary Sciences, University of Tennessee, 1621 Cumberland Ave, 602 Strong Hall, Knoxville, TN 37996-1410, jatwood2@utk.edu, jatwood2@utk.edu

KAMMER, Thomas W., Department of Geology and Geography, West Virginia University, 330 Brooks Hall, Morgantown, WV 26506-6300, AUSICH, William I., School of Earth Sciences, The Ohio State University, 155 South Oval Mall, Columbus, OH 43210-1398, SUMRALL, Colin D., Department of Earth and Planetary Sciences, University of Tennessee, 1621 Cumberland Ave, 602 Strong Hall, Knoxville, TN 37996-1410 and DELINE, Bradley, Department of Geosciences, University of West Georgia, 1601 Maple St, Carrollton, GA 30118, tkammer@wvu.edu, tkammer@wvu.edu

AUSICH, William I., School of Earth Sciences, The Ohio State University, 275 Mendenhall Lab, 125 S. Oval Mall, Columbus, OH 43210, KAMMER, Thomas W., Department of Geology and Geography, West Virginia University, Morgantown, WV 26506-6300, DELINE, Bradley, Department of Geosciences, University of West Georgia, 1601 Maple St, Carrollton, GA 30118 and SUMRALL, Colin D., Department of Earth and Planetary Sciences, University of Tennessee, 1621 Cumberland Ave, 602 Strong Hall, Knoxville, TN 37996-1410, ausich.1@osu.edu, ausich.1@osu.edu

THOMPSON, Jeffrey R., Department of Earth Sciences, The University of Southern California, Columbus, OH 43235 and AUSICH, William I., School of Earth Sciences, The Ohio State University, 275 Mendenhall Lab, 125 S. Oval Mall, Columbus, OH 43210, thompson.1983@buckeyemail.osu.edu, thompson.1983@buckeyemail.osu.edu

SYVERSON, V.J., Museum of Paleontology, University of Michigan, 1109 Geddes Ave, Ann Arbor, MI 48109 and BAUMILLER, Tomasz K., Museum of Paleontology, University of Michigan, 1109 Geddes, Ann Arbor, MI 48109-1079, vsyverson@gmail.com, vsyverson@gmail.com

ANDERSON, Philip S.L., Department of Biology, University of Massachusetts, 221 Morrill Science Center, 611 North Pleasant Street, Amherst, MA 01003 and FRIEDMAN, Matt, Department of Earth Sciences, University of Oxford, South Parks Road, Oxford, OX1 3AN, United Kingdom, Panderson@bio.umass.edu, Panderson@bio.umass.edu

HUNT, Gene, Department of Paleobiology, Smithsonian Institution, National Museum of Natural History, NHB MRC 121, P.O. Box 37012, Washington, DC 20013-7012, FTIZJOHN, Richard G., Department of Zoology, University of British Columbia, Vancouver, BC V6T 1Z4, Canada and CARRANO, Matthew T., Department of Paleobiology, Smithsonian Institution, P.O. Box 37012, NHB, MRC-121, Washington, DC 20013-7012, hunte@si.edu, hunte@si.edu

SHOEMAKER, Lauren G., Ecology and Evolutionary Biology, University of Colorado at Boulder, 4200 Hanover Ave, Boulder, CO 80305 and CLAUSET, Aaron, Computer Science, University of Colorado at Boulder, Department of Computer Science, 430 UCB, Boulder, CO 80309-0430, lauren.shoemaker@colorado.edu, lauren.shoemaker@colorado.edu

SIMS, Hallie, Department of Geoscience, University of Iowa, Trowbridge Hall, Iowa City, IA 52242, hallie-sims@uiowa.edu, hallie-sims@uiowa.edu

JUNG, Jikhan, Geoscience, University of Iowa, Trowbridge Hall North Capitol St, Iowa City, IA 52242, jikhan-jung@uiowa.edu, jikhan-jung@uiowa.edu

TIBBITS, Matthew, Univesrity of Iowa, Department of Earth and Environmental Sciences, 115 Trowbridge Hall, Iowa City, IA 52242, matthew-tibbits@uiowa.edu, matthew-tibbits@uiowa.edu