1. Terrestrial Paleoclimatology Research Group, Department of Geosciences Baylor University Waco TX USA
2. Department of Integrative Biology University of California Berkeley, and UC Museum of Paleontology Berkeley CA USA
3. Department of Geology Field Museum of Natural History Chicago IL USA
4. Department of Paleobiology National Museum of Natural History, Smithsonian Institution, 10th & Constitution Avenue NW Washington D.C. USA
5. Center for Spatial Research, Baylor University Waco TX USA
6. Natural History Museums of Los Angeles County, La Brea Tar Pits Los Angeles CA USA
7. Department of Biology Baylor University Waco TX USA
8. Center for Microscopy and Imaging Baylor University Waco TX USA