华北克拉通南缘汝阳群大型具刺疑源类时代再厘定及早期真核生物群演化意义*
彭楠1, 旷红伟1, 柳永清1, 耿元生1, 夏晓旭1,2, 王玉冲1,2, 陈骁帅1, 郑行海2

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 Nan1, Kuang Hong-Wei1, Liu Yong-Qing1, Geng Yuan-Sheng1, Xia Xiao-Xu1,2, Wang Yu-Chong1,2, Chen Xiao-Shuai1, Zheng Hang-Hai2
河南汝州阳坡村洛峪口组实测剖面及采样位置(据 左景勋等,1997 ; 苏文博等,2012 ;略有修改) a—凝灰岩夹层(绿色);b—凝灰岩显微结构特征(单偏光)