About the Authors
- Phil Senter
- Department of Biological Sciences, Fayetteville State University, Fayetteville, North Carolina, United States of America
- James I. Kirkland, Donald D. DeBlieux
- Utah Geological Survey, Salt Lake City, Utah, United States of America
The authors have declared that no competing interests exist.
Analyzed the data: PS. Contributed reagents/materials/analysis tools: JIK DDD. Wrote the paper: PS. Field work: JIK DDD. Lab work: DDD.