Middle Jurassic Palynoflora from the Taerga Formation in the Tarim Basin, Xinjiang and Its Bearings on Stratigraphy and Palaeogeography

详细信息   

• 责任者：Jiang Dexin (Institute of Geology and Geophysics ; Chinese Academy of Sciences ; Beijing 100029 ; China) ; Wang Yongdong
• 刊名：Acta Micropalaeontologica Sinica
• 出版年：2008
• 卷期：25(4)
• 关键词：孢粉组合 ; palynological assemblage ; 中侏罗世 ; Middle Jurassic ; 塔里木盆地 ; Tarim Basin
• 页码：p.333-344
• 图表：2 illus., 2 plates, 2 tables, 28 refs.
• 分类号：1102
• issnNo：ISSN1000-0674
• isbnNo：CN32-1189/Q

摘要

The Triassic and Jurassic palynofloras in the Kuqa Depression are intensively investigated, however, little attention was paid for fossil palynomorphs in SW Tarim region. In this paper, the authors report 48 species of spores and pollen referred to 33 genera from the Middle Jurassic Taerga Formation in the southwestern region of the Tarim Basin, Xinjiang. The sporopollen assemblage of the Taerga Formation is characterized by the dominance of the cheirolepidiaceous pollen of Coniferales and the abundance of cyatheaceous spores of Filicales. The index species of this assemblage are represented by a varietry of fossil spores and pollen with Jurassic aspects. The present assemblage is comparable with those of the Bajocian to Bathonian of West Europe and Russia as well as those of the Bajocian to Callovian of North America and Australia.