About the Authors

Shundong Bi

sbi@iup.edu

Affiliations Key Laboratory of Evolutionary Systematics of Vertebrates, Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, Beijing, China, Department of Biology, Indiana University of Pennsylvania, Indiana, Pennsylvania, United States of America

Jin Meng

Affiliation Division of Paleontology, American Museum of Natural History, New York, United States of America

Sarah McLean

Affiliation Department of Biology, Indiana University of Pennsylvania, Indiana, Pennsylvania, United States of America

Wenyu Wu

Affiliation Key Laboratory of Evolutionary Systematics of Vertebrates, Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, Beijing, China

Xijun Ni

Affiliation Key Laboratory of Evolutionary Systematics of Vertebrates, Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, Beijing, China

Jie Ye

Affiliation Key Laboratory of Evolutionary Systematics of Vertebrates, Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, Beijing, China

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: SB JM. Performed the experiments: SB JM SM WW. Analyzed the data: SB SM JM WW. Contributed reagents/materials/analysis tools: SM XN JY. Wrote the paper: SB.