About the Authors

Rubén D. F. Martínez

rudaframartinez@gmail.com

Affiliation Laboratorio de Paleovertebrados, Universidad Nacional de la Patagonia San Juan Bosco, Comodoro Rivadavia, Chubut, Argentina

Matthew C. Lamanna

Affiliation Section of Vertebrate Paleontology, Carnegie Museum of Natural History, Pittsburgh, Pennsylvania, United States of America

Fernando E. Novas

Affiliation Laboratorio de Anatomía Comparada y Evolución de los Vertebrados, Museo Argentino de Ciencias Naturales, Buenos Aires, Argentina

Ryan C. Ridgely

Affiliation Department of Biomedical Sciences, Heritage College of Osteopathic Medicine, Ohio University, Athens, Ohio, United States of America

Gabriel A. Casal

Affiliation Laboratorio de Paleovertebrados, Universidad Nacional de la Patagonia San Juan Bosco, Comodoro Rivadavia, Chubut, Argentina

Javier E. Martínez

Affiliation Hospital Regional de Comodoro Rivadavia, Comodoro Rivadavia, Chubut, Argentina

Javier R. Vita

Affiliation Resonancia Magnética Borelli, Comodoro Rivadavia, Chubut, Argentina

Lawrence M. Witmer

Affiliation Department of Biomedical Sciences, Heritage College of Osteopathic Medicine, Ohio University, Athens, Ohio, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: RDFM MCL FEN RCR GAC JEM JRV LMW. Performed the experiments: RDFM MCL GAC JEM JRV. Analyzed the data: RDFM MCL RCR GAC LMW. Contributed reagents/materials/analysis tools: RDFM MCL RCR GAC JEM JRV LMW. Wrote the paper: RDFM MCL FEN GAC LMW.