About the Authors
- Michael Xavier Kirby
- Center for Tropical Paleoecology and Archaeology, Smithsonian Tropical Research Institute, Balboa, Republic of Panama
- Douglas S. Jones, Bruce J. MacFadden
- Florida Museum of Natural History, University of Florida, Gainesville, Florida, United States of America
The authors have declared that no competing interests exist.
Conceived and designed the experiments: MXK DSJ BJM. Performed the experiments: DSJ. Analyzed the data: MXK DSJ BJM. Contributed reagents/materials/analysis tools: DSJ. Wrote the paper: MXK.