About the Authors

Anthony R. Fiorillo

anthony.fiorillo@perotmuseum.org

Affiliation Department of Paleontology, Perot Museum of Nature and Science, Dallas, Texas, United States of America

Ronald S. Tykoski

Affiliation Department of Paleontology, Perot Museum of Nature and Science, Dallas, Texas, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: ARF RST. Performed the experiments: ARF RST. Analyzed the data: ARF RST. Contributed reagents/materials/analysis tools: ARF RST. Wrote the paper: ARF RST.