About the Authors
- Donald M. Henderson
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* E-mail: don.henderson@gov.ab.ca
Affiliation Royal Tyrrell Museum of Palaeontology, Drumheller, Alberta, Canada
Competing Interests
The author has declared that no competing interests exist.
Author Contributions
Conceived and designed the experiments: DMH. Performed the experiments: DMH. Analyzed the data: DMH. Contributed reagents/materials/analysis tools: DMH. Wrote the paper: DMH.