Paleocene Wuyun flora in Northeast China: Woodwardia bureiensis, Dryopteris sp. and Osmunda sachalinensis

WANG Qing, Albert G. ABLAEV, WANG Yu-Fei, LI Cheng-Sen

Journal of Systematics and Evolution . 2006, (6): 712 -720 . DOI: 10.1360/aps040129