About the Authors

Steven C. Wallace


Affiliation Department of Geosciences, Don Sundquist Center of Excellence in Paleontology, East Tennessee State University, Johnson City, Tennessee, United States of America

Richard C. Hulbert Jr

Affiliation Florida Museum of Natural History, University of Florida, Gainesville, Florida, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

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