About the Authors

Amy M. Balanoff

abalanoff@gmail.com

Affiliations Stony Brook University, Department of Anatomical Sciences, Stony Brook, New York, United States of America, American Museum of Natural History, Division of Paleontology, Central Park West at 79th Street, New York, New York, United States of America

G. S. Bever

Affiliations New York Institute of Technology, College of Osteopathic Medicine, Department of Anatomy, Northern Boulevard, Old Westbury, New York, United States of America, American Museum of Natural History, Division of Paleontology, Central Park West at 79th Street, New York, New York, United States of America

Mark A. Norell

Affiliation American Museum of Natural History, Division of Paleontology, Central Park West at 79th Street, New York, New York, United States of America

Competing Interests

The authors have declared no competing interests exist.

Author Contributions

Conceived and designed the experiments: AMB GSB MAN. Performed the experiments: AMB. Analyzed the data: AMB GSB MAN. Contributed reagents/materials/analysis tools: MAN. Wrote the paper: AMB GSB MAN.