About the Authors

Nicole Klein

nklein@uni-bonn.de

Affiliation Steinmann Institute of Paleontology, University of Bonn, Bonn, Germany

P. Martin Sander

Affiliation Steinmann Institute of Paleontology, University of Bonn, Bonn, Germany

Koen Stein

Affiliation Steinmann Institute of Paleontology, University of Bonn, Bonn, Germany

Jean Le Loeuff

Affiliation Musée des Dinosaures, Espéraza, France

Jose L. Carballido

Affiliation Museo Paleontologico Egidio Feruglio, Trelew, Argentina

Eric Buffetaut

Affiliation Centre National de la Recherche Scientifique, Paris, France

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Analyzed the data: NK PMS KS. Contributed reagents/materials/analysis tools: JL EB. Wrote the paper: NK PMS. Performed the character optimization for the phylogenetic analysis: JLC. Contributed locality and specimen informations: JL EB.