1. Dept of Earth and Atmospheric Sciences, Indiana Univ. Bloomington IN USA
2. Dept of Paleobiology, National Museum of Natural History, Smithsonian Inst. Washington D.C. USA
3. Dept of Earth and Atmospheric Sciences, Georgia Inst. of Technology Atlanta GA USA
4. Centre for Ecosystem Science, School of Biological, Earth and Environmental Sciences, Univ. of New South Wales Sydney NSW Australia
5. Palaeobiology, Canadian Museum of Nature Ottawa ON Canada
6. Biology&Earth Sciences, Carleton Univ. Ottawa ON Canada
7. Dept of Anthropology and Geography, Colorado State Univ. Fort Collins CO USA
8. Center for the Advanced Study of Human Paleobiology, Dept of Anthropology, The George Washington Univ. Washington D.C. USA
9. Environmental Science and Ecology, The College at Brockport, State Univ. of New York Brockport NY USA
10. BIO5 Inst., Univ. of Arizona Tucson AZ USA
11. Dept of Life and Environmental Sciences, Univ. of California Merced CA USA
12. Natural History Museum of Los Angeles County Los Angeles CA USA
13. Helsinki Inst. of Sustainability Science, Faculty of Biological and Environmental Sciences, Ecosystems and Environment Research Programme, Univ. of Helsinki Finland
14. BIOS Research Unit Helsinki Finland
15. Dept of Biology, Univ. of Vermont Burlington VT USA
16. Dept of Integrative Biology and Museum of Paleontology, Univ. of California Berkeley Berkeley CA USA
17. Dept of Geology, Univ. of Cincinnati Cincinnati OH USA
18. Univ. of Nebraska–Lincoln, School of Biological Sciences Lincoln NE USA
19. Dept of Anthropology, Univ. of Arkansas Fayetteville AR USA