About the Authors

Hanyong Pu

Affiliation Henan Geological Museum, Zhengzhou, Henan, China

Yoshitsugu Kobayashi

ykobayashi@museum.hokudai.ac.jp (YK); Lujc2008@126.com (JL)

Affiliation Hokkaido University Museum, Hokkaido University, Sapporo, Japan

Junchang Lü

ykobayashi@museum.hokudai.ac.jp (YK); Lujc2008@126.com (JL)

Affiliation Institute of Geology, Chinese Academy of Geological Sciences, Beijing, China

Li Xu

Affiliation Henan Geological Museum, Zhengzhou, Henan, China

Yanhua Wu

Affiliation Henan Geological Museum, Zhengzhou, Henan, China

Huali Chang

Affiliation Henan Geological Museum, Zhengzhou, Henan, China

Jiming Zhang

Affiliation Henan Geological Museum, Zhengzhou, Henan, China

Songhai Jia

Affiliation Henan Geological Museum, Zhengzhou, Henan, China

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: YK JL. Performed the experiments: YK JL. Analyzed the data: YK JL. Contributed reagents/materials/analysis tools: HP JL LX YW HC JZ SJ. Wrote the paper: YK JL.