About the Authors
Department of Earth and Environmental Science, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America
Utah Geological Survey, Salt Lake City, Utah, United States of America
John Day Fossil Beds National Monument, Kimberly, Oregon, United States of America
St. George Dinosaur Discovery Site at Johnson Farm, St. George, Utah, United States of America
Naturalist Illustrator, Torre di Mosto, Venice, Italy
The authors have declared that no competing interests exist.
Conceived and designed the experiments: ATM JK. Performed the experiments: ATM. Analyzed the data: ATM. Contributed reagents/materials/analysis tools: ATM JK DD SM JC AM. Wrote the paper: ATM. Created life restorations of the new species: LP.