About the Authors

Han Hu

huhan_ivpp@163.com

Affiliations Key Laboratory of Vertebrate Evolution and Human Origin of Chinese Academy of Sciences, Institute of Vertebrate Paleontology and Paleoanthropology, Beijing, China, University of Chinese Academy of Sciences, Beijing, China

Jingmai K. O’Connor

Affiliation Key Laboratory of Vertebrate Evolution and Human Origin of Chinese Academy of Sciences, Institute of Vertebrate Paleontology and Paleoanthropology, Beijing, China

Zhonghe Zhou

Affiliation Key Laboratory of Vertebrate Evolution and Human Origin of Chinese Academy of Sciences, Institute of Vertebrate Paleontology and Paleoanthropology, Beijing, China

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: HH JKO ZZ. Performed the experiments: HH JKO ZZ. Analyzed the data: HH JKO ZZ. Wrote the paper: HH.