About the Authors

Jennifer C. Olori

jennifer.olori@oswego.edu

Address Current address: Department of Biological Sciences, State University of New York at Oswego, Oswego, New York, United States of America

Affiliation Department of Geological Sciences, Jackson School of Geosciences, The University of Texas at Austin, Austin, Texas, United States of America

Christopher J. Bell

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Hand-prepared skulls: JCO. Analyzed the data: JCO CJB. Contributed reagents/materials/analysis tools: JCO CJB. Wrote the paper: JCO CJB. Conceived and designed the experiments: JCO CJB. Analyzed the data: JCO CJB. Wrote the paper: JCO CJB.