Recognition of geological age for acanthomorphic acritarchs from the Ruyang Group,southern margin of North China Craton and its implication for evolution of early eukaryotes
Peng Nan, Kuang Hong-Wei, Liu Yong-Qing, Geng Yuan-Sheng, Xia Xiao-Xu, Wang Yu-Chong, Chen Xiao-Shuai, Zheng Hang-Hai
JOPC . 2018, (4): 595 -608 .  DOI: 10.7605/gdlxb.2018.04.043