J Integr Plant Biol. ›› 1998, Vol. 40 ›› Issue (10): -.

• Research Articles •    

Middle Jurassic Spore- pollen Assemblages from Turpan- Shanshan Area, Xinjiang

WANG Yong-Dong,JIANG De-Xin, YANG Hui-Qiu and SUN Feng   

Abstract: The Middle Jurassic palynoflora from the two wells of PUl and CN1 of Turpan-Shanshan area in Xinjiang consists of 97 species of fossil spores and pollen grains referred to 45 genera, of which 2 species are newly described. Three palynological assemblages including: 1) Cyathidites-Cycadopites-Quadraeculina (CCQ), 2) Cyathidites-Classopollis-Picites (CCP) and 3 ) Granu-latisporites-Classopollis-Podocarpidites (GCP) assemblages are established in the Xishanyao, Sanjianfang and Qiketai Formations, respectively. Comparisons have been made between these assemblages with those of the adjacent regions in Xinjiang and other domestic areas and at abroad. The geological age of the CCQ assemblage is suggested to be at early Middle Jurassic (corresponding to Aalenian to Bajocian age); while the CCP and GCP assemblages are considered to be at late Middle Jurassic (corresponding to early to late Bathonian age, respectively).

Key words: Spore-pollen assemblage, Aalenian-Bajocian, Bathonian, Turpan-Shanshan area

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