1. School of Natural Sciences, University of California P.O. Box 2039, Merced, CA 95344, USA; E-mail: bdayrat@ucmerced.edu
2. Department of Environmental and Plant Biology, Ohio University Athens, OH 45701, USA; E-mail: cantino@ohiou.edu
3. Department of Marine, Earth and Atmospheric Sciences, North Carolina State University Campus Box 8208, Raleigh, NC 27695-8208, USA; E-mail: Julia_Clarke@ncsu.edu
4. Department of Paleontology, North Carolina Museum of Natural Sciences 11 West Jones Street, Raleigh, NC 27601-1029, USA
5. Department of Vertebrate Zoology, National Museum of Natural History, Smithsonian Institution Washington, DC 20560, USA; E-mail: dequeirozk@si.edu