Lithostratigraphy of a long, fossiliferous Oligocene sequence: Revisiting Saint Jacques, Nei Mongol, China oleh Bian Wang, Bian Wang, Zhao-Qun Zhang, Zhao-Qun Zhang, Zhao-Qun Zhang, Yuan-Qing Wang, Yuan-Qing Wang, Yuan-Qing Wang, Qian Li, Qian Li, Bin Bai, Bin Bai, Yan Liu, Yan Liu, Fang-Yuan Mao, Fang-Yuan Mao, Hai-Bing Wang, Hai-Bing Wang, Jian Wang, Jian Wang, Yan-Xin Gong, Yan-Xin Gong, Li-Ping Dong, Li-Ping Dong, Li-Hua Wang, Li-Hua Wang, Hai-Dan Ma, Hai-Dan Ma, Ran-Cheng Xu, Ran-Cheng Xu, Xiao-Yang Wang, Xiao-Yang Wang