2015, LIU Huan, SUN Shufen, ZHU Shixing, “河北宽城地区中元古界高于庄组微古植物群 [Research on the micropalaeoflora from the Mesoproterozoic Gaoyuzhuang Formation in Kuancheng area, Hebei Province]”, in Geological Bulletin of China[1], volume 34, number 9, page 1723:
在长城系中早有丝状化石的报道，例如串岭沟组中的壮丽青山藻 Qingshania magnifica Yan 和紧密长城线藻 Changchengnema densa Yan，前者为粗大的丝状绿藻化石，后者则为具有假分枝蓝藻门伪枝藻科的化石，但至今尚未有真正分叉化石的报道。
Filamentous fossils have long been reported in the Great Wall System, such as Qingshania magnifica (Yan) in the Chuanlinggou Formation and Changchengnema densa (Yan); the former is a coarse filamentous green algae fossil and the latter is a pseudobranched green algae fossil.
2024, Lanyun Miao, Zongjun Yin, Andrew H. Knoll, Yuangao Qu, Maoyan Zhu, “1.63-billion-year-old multicellular eukaryotes from the Chuanlinggou Formation in North China”, in Science Advances, volume 10, →DOI:
Large uniseriate filaments described as Qingshania magnifica, with cell diameters up to 250 μm, were described as early as 1989 by Yan (20) from thin sections of shales within the late Paleoproterozoic Chuanlinggou Formation, North China, and interpreted as primitive green algae.
