WITTS, James1, MYERS, Corinne2, PETERSEN, Sierra3, HOFFMAN, Jon J.3, NAUJOKAITYTE, Jone2, ROVELLI, Remy4, GARB, Matthew5, PHILLIPS, George E.6 and LANDMAN, Neil7, (1)School of Earth Sciences, University of Bristol, Wills Memorial Building, Queens Road, Clifton, Bristol, BS8 1RJ, United Kingdom, (2)Earth and Planetary Sciences, University of New Mexico, Northrop Hall, 221 Yale Blvd NE, Albuquerque, NM 87131, (3)Department of Earth and Environmental Sciences, University of Michigan, 1100 North University Ave, Ann Arbor, MI 48109, (4)Dept. of Earth and Planetary Sciences, Northrop Hall, 221 Yale Blvd NE, Albuquerque, NM 87131, (5)Earth and Environmental Sciences, Brooklyn College, 2900 Bedford Ave, Brooklyn, NY 11210, (6)Paleontology, Mississippi Museum of Natural Science, 2148 Riverside Drive, Jackson, MS 39202-1353, (7)Division of Paleontology (Invertebrate), American Museum of Natural History, 200 Central Park W, New York, NY 10024-5102