About the Authors

Lucio M. Ibiricu

ibiriculm@yahoo.com.ar

Affiliation Laboratorio de Paleontología, Centro Nacional Patagónico (CONICET-CENPAT), Puerto Madryn, Chubut, Argentina

Rubén D. Martínez

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

Gabriel A. Casal

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

Ignacio A. Cerda

Affiliation Consejo Nacional de Investigaciones Científicas y Tecnológicas (CONICET), Instituto de Investigación en Paleobiología y Geología, Universidad Nacional de Río Negro, Museo Carlos Ameghino, Belgrano, Paraje Pichi Ruca (predio Marabunta), Cipolletti, Río Negro, Argentina

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: LMI RDM GAC IAC. Performed the experiments: LMI IAC. Analyzed the data: LMI GAC. Contributed reagents/materials/analysis tools: RDM GAC IAC. Wrote the paper: LMI. Conducted anatomical study: RDM. Conducted taphonomic study: GAC. Conducted histological study: IAC.