Middle Jurassic Sporo-pollen Assemblage from the Yan‘an Formation of Dongsheng, Nei Monggol, China Response of stable-carbon isotope composition of different tree-ring compounds to climatic change Paleovegetation and paleoclimate fluctuations in Qingpu Area,Shanghai since 8.5 ka B.P. Quaternary Sporo-pollen Flora and Palcoclimate of the Tianyang Volcanic Lake Basin,Leizhou Peninsula Early Tertiary fossil plants and paleoclimate of Lanzhou Basin MIS3b vegetation and climate changes based on pollen and charcoal on Qianxi Plateau Progress and Application of Bryophyte Fossils Study New High Resolution Pollen Records from Two Lakes in Xizang (Tibet) Westphalian Sporo-Pollen Assemblages from the Upper Carboniferous in Zhongwei, Ningxia