About the Authors

Natalia Rybczynski


Affiliation Earth Sciences, Canadian Museum of Nature, Ottawa, Canada

Elizabeth M. Ross

Affiliation Earth Sciences, Carleton University, Ottawa, Canada

Joshua X. Samuels

Affiliation John Day Fossil Beds National Monument, Kimberly, Oregon, United States of America

William W. Korth

Affiliation Rochester Institute of Vertebrate Paleontology, Rochester, New York, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: NR JXS. Analyzed the data: EMR JXS. Contributed reagents/materials/analysis tools: NR JXS. Wrote the paper: NR EMR JXS WWK. Supervised student Liz Ross: NR. Secured funding: NR. Collected data: EMR. Wrote specimen description and diagnosis: WWK.