Journal Pre-proof Age constraint for an earliest Famennian forest and its implications for Frasnian-Famennian boundary in West Junggar, Northwest China Daran Zheng, Su-Chin Chang, Thomas Algeo, Haichun Zhang, Bo Wang, He Wang, Jun Wang, Chongqin Feng, Honghe Xu PII: S0031-0182(20)30194-2 DOI: https://doi.org/10.1016/j.palaeo.2020.109749 Reference: PALAEO 109749 To appear in: Palaeogeography, Palaeoclimatology, Palaeoecology Received date: 12 January 2020 Revised date: 6 April 2020 Accepted date: 7 April 2020 Please cite this article as: D. Zheng, S.-C. Chang, T. Algeo, et al., Age constraint for an earliest Famennian forest and its implications for Frasnian-Famennian boundary in West Junggar, Northwest China, Palaeogeography, Palaeoclimatology, Palaeoecology (2018), https://doi.org/10.1016/j.palaeo.2020.109749 This is a PDF file of an article that has undergone enhancements after acceptance, such as the addition of a cover page and metadata, and formatting for readability, but it is not yet the definitive version of record. This version will undergo additional copyediting, typesetting and review before it is published in its final form, but we are providing this version to give early visibility of the article. Please note that, during the production process, errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. © 2018 Published by Elsevier.