About the Authors

Jordan C. Mallon

jmallon@mus-nature.ca

Affiliation Palaeobiology, Canadian Museum of Nature, PO Box 3443 Station “D”, Ottawa, Ontario, K1P 6P4, Canada

Christopher J. Ott

Affiliation Independent Researcher, PO Box 1515, Appleton, Wisconsin, 54912, United States of America

Peter L. Larson

Affiliation Black Hills Institute, 217 Main Street, Hill City, South Dakota, 57745, United States of America

Edward M. Iuliano

Affiliation Kadlec Medical Center, 888 Swift Boulevard, Richland, Washington, 99352, United States of America

David C. Evans

Affiliation Department of Natural History, Royal Ontario Museum, 100 Queen’s Park, Toronto, Ontario, M5S 2C6, Canada

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: JCM CJO PLL EMI DCE. Performed the experiments: JCM EMI DCE. Analyzed the data: JCM CJO PLL EMI DCE. Contributed reagents/materials/analysis tools: JCM CJO PLL EMI DCE. Wrote the paper: JCM CJO PLL EMI DCE.