Fossil Capsular Valves of Koelreuteria (Sapindaceae) from the Eocene of Central Tibetan Plateau and Their Biogeographic Implications. - Chen, Pei-Rong; Del Rio, Cédric; Huang, Jian; Liu, Jia; Zhao, Jia-Gang; Spicer, Robert A.; Li, Shu-Feng; Wang, Teng-Xiang; Zhou, Zhe-Kun; Su, Tao (International Journal of Plant Sciences, 2022)