About the Authors
- Geerat J. Vermeij
-
* E-mail: gjvermeij@ucdavis.edu
Affiliation Department of Earth and Planetary Sciences, University of California, One Shields Avenue, Davis, California, 95616, United States of America
Competing Interests
The authors have declared that no competing interests exist.
Author Contributions
Analyzed the data: GJV. Contributed reagents/materials/analysis tools: GJV. Wrote the paper: GJV.