About the Authors

Hai Xing

xinghai@bmnh.org.cn

Affiliation Beijing Museum of Natural History, Beijing Academy of Science and Technology, Beijing, China

Jordan C. Mallon

Affiliation Palaeobiology, Canadian Museum of Nature, Ottawa, Ontario, Canada

Margaret L. Currie

Affiliation Palaeobiology, Canadian Museum of Nature, Ottawa, Ontario, Canada

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Data curation: HX. Formal analysis: HX. Funding acquisition: HX JCM. Investigation: HX JCM MLC. Methodology: HX JCM. Project administration: HX JCM. Resources: JCM MLC. Software: HX. Supervision: HX JCM. Writing – original draft: HX JCM. Writing – review & editing: HX.