• 责任者：Ouyang Shu (Nanjing Institute of Geology and Palaeontology ; Chinese Academy of Sciences ; Nanjing 210008 ; China) ; Ji Liuxiang
• 刊名：Acta Palaeontologica Sinica
• 出版年：2011
• 卷期：50(2)
• 关键词：孢粉组合 ; palynological assemblage ; 青海 ; Qinghai Province
• 页码：p.187-218
• 图表：1 illus., 8 plates, 3 tables, 23 refs.
• 分类号：1102
• 出版序号：1077
• issnNo：ISSN0001-6616
• isbnNo：CN32-1188/Q

///The Hongshuichuan Group typically crops out in the Maduo and Dulan counties of central Qinghai Province, consisting mainly of volcano-clastics and limestones with thick basal conglomerates, it is dated as Early Triassic based on faunal evidence (e.g. from cephalopods). However, the group actually extends far to the western area of the province and includes two sets of strata, lithologically represented mainly by dark grey muddy siltstones and dark grey sandy shales, previously assigned respectively to Permian and Jurassic. The paper deals with abundant and diverse fossil spores and pollen recovered for the first time from these two sets of stratigraphic units, represented by two sections in a depopulated area far West of the Geermu City. As a whole the assemblages contain an average contents of 43.98% cryptogam spores, 45.81% gymnospermous pollen and 10.04% acritarchs.