About the Authors

Alida M. Bailleul

alida.bailleul@msu.montana.edu

Affiliations Museum of the Rockies, Montana State University, Bozeman, Montana, United States of America, Department of Earth Sciences, Montana State University, Bozeman, Montana, United States of America

Brian K. Hall

Affiliation Department of Biology, Dalhousie University, Halifax, Nova Scotia, Canada

John R. Horner

Affiliations Museum of the Rockies, Montana State University, Bozeman, Montana, United States of America, Department of Earth Sciences, Montana State University, Bozeman, Montana, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: AMB BKH JRH. Performed the experiments: AMB JRH. Analyzed the data: AMB BKH JRH. Wrote the paper: AMB BKH. Commented on the manuscript: JRH.