1. School of Natural Sciences, Univ. of California; Merced 5200 North Lake Road Merced CA 95343 USA
2. Dept of Biology; Univ. of Vermont; Burlington VT 05405 USA
3. Dept of Paleobiology, and ETE Program; National Museum of Natural History, Smithsonian Inst.; Washington DC USA
4. School of Social Science, The Univ. of Queensland; Brisbane QLD 4072 Australia
5. Dept of Geography and Center for Climatic Research; Univ. of Wisconsin-Madison; 550 North Park St Madison WI 53706 USA
6. Environmental Science and Biology, The College at Brockport - SUNY; Brockport, NY USA
7. Dept of Geology; Lund Univ.; Lund Sweden
8. Hominid Paleobiology Doctoral Program, Center for the Advanced Study of Hominid Paleobiology, Dept of Anthropology, George Washington Univ.; Washington DC USA
9. Dept of Geosciences and Geography; Univ. of Helsinki; Helsinki Finland
10. Dept of Vertebrate Zoology; National Museum of Natural History, Smithsonian Inst.; Washington DC USA
11. Center for Macroecology, Evolution and Climate, Univ. of Copenhagen; Copenhagen Denmark
12. Biological Sciences Graduate Program, Univ. of Maryland; College Park MD USA
13. Dept of Entomology; Univ. of Maryland College Park; College Park MD USA
14. Dept of Integrative Biology, and Museum of Paleontology; Univ. of California Berkeley; Berkeley CA USA
15. School Biology and Ecology and Sustainability Solutions Initiative, Univ. of Maine; Orono ME USA
16. Dept of Anthropology; Human Origins Program, National Museum of Natural History, Smithsonian Inst.; Washington DC USA
17. School of Life Sciences, Univ. of Nevada-Las Vegas; Las Vegas NV USA
18. Dept of Integrative Biology; Oregon State Univ.; Corvallis OR USA