About the Authors

Jason D. Pardo

jdpardo@ucalgary.ca

Affiliation Department of Biological Sciences, University of Calgary, Calgary, Alberta, Canada

Adam K. Huttenlocker

Affiliation Department of Biology, University of Utah, and Natural History Museum of Utah, Salt Lake City, Utah, United States of America

Bryan J. Small

Affiliations Museum of Texas Tech University, Lubbock, Texas, United States of America, Rocky Mountain Dinosaur Resource Center, Woodland Park, Colorado, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: JDP AKH BJS. Performed the experiments: JDP. Analyzed the data: JDP AKH BJS. Contributed reagents/materials/analysis tools: JDP. Wrote the paper: JDP AKH BJS.