About the Authors

Andrew R. C. Milner

amilner@sgcity.org

Affiliation St. George Dinosaur Discovery Site at Johnson Farm, St. George, Utah, United States of America

Jerald D. Harris

Affiliation Dixie State College, St. George, Utah, United States of America

Martin G. Lockley

Affiliation Dinosaur Tracks Museum, University of Colorado at Denver, Denver, Colorado, United States of America

James I. Kirkland

Affiliation Utah Geological Survey, Salt Lake City, Utah, United States of America

Neffra A. Matthews

Affiliation National Operations Center, USDOI-Bureau of Land Management, Denver, Colorado, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: ARCM JDH ML JK. Performed the experiments: ARCM JDH ML JK. Analyzed the data: ARCM JDH ML JK NAM. Contributed reagents/materials/analysis tools: NAM. Wrote the paper: ARCM JDH.