Abstract
The following article from Acta Geologica Sinica‐English Edition, published online on 27 February 2019 in Wiley Online Library (http://wileyonlinelibrary.com), has been retracted by agreement between the authors, the Journal Editor‐in‐Chief, Zengqian Hou and John Wiley & Sons Australia, Ltd. The retraction has been agreed because the research finding of the article cannot be validated using another methodology, and the conclusion drawn is unreliable.ReferenceCheng, X., Liu, S., Huang, W., Liu, L., Li, H., and Li, Y., 2019. A New Species of Mongolarachnidae from the Yixian Formation of Western Liaoning, China. Acta Geologica Sinica (English Edition), 93(1): 227–228. doi: 10.1111/1755-6724.13780