About the Authors

Janice L. Pappas

jlpappas@umich.edu

Affiliation Museum of Paleontology, University of Michigan, Ann Arbor, Michigan, United States of America

Daniel J. Miller

Affiliation Museum of Paleontology, University of Michigan, Ann Arbor, Michigan, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

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