3.
An amended species, Nilssoniopteris neimenguensis nom. nov., from the Lower Jurassic of the Xilinhot Basin, Inner Mongolia, northern China, with a reexamination of Nilssoniopteris species
Yi Zhao, Yuanzheng Lu, Ping Shang, Shenghui Deng, Xunlian Wang
Review of Palaeobotany and Palynology