About the Authors

Xin Zhang

Affiliation College of Forestry, Northwest A&F University, Yangling, China

Wenzhe Liu

Affiliation College of Life Sciences, Northwest University, Xi’an, China

Xin Wang

xinwang@nigpas.ac.cn

Affiliation State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, CAS, Nanjing, China

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceptualization: XZ XW. Data curation: XZ WL XW. Investigation: XZ XW. Methodology: XZ WL. Writing – original draft: XW XZ. Writing – review & editing: XZ WL.