About the Authors
- Nicholas R. Longrich
- Department of Geology and Geophysics, Yale University, New Haven, Connecticut, United States of America
- John R. Horner
- Museum of the Rockies, Montana State University, Bozeman, Montana, United States of America
- Gregory M. Erickson
- Department of Biological Science, Florida State University, Tallahassee, Florida, United States of America
- Philip J. Currie
- Department of Biological Sciences, University of Alberta, Edmonton, Alberta, Canada
The authors have declared that no competing interests exist.
Conceived and designed the experiments: NL JRH. Performed the experiments: NL JRH. Analyzed the data: NL JRH GME PC. Contributed reagents/materials/analysis tools: JRH. Wrote the paper: NL GME.