About the Authors

John B. Scannella

jscannella@gmail.com

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

John R. Horner

Affiliation Museum of the Rockies and 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: JBS JRH. Performed the experiments: JBS JRH. Analyzed the data: JBS JRH. Contributed reagents/materials/analysis tools: JBS JRH. Wrote the paper: JBS JRH.