贵州六枝—盘县地区早二叠世隆林期■类组合与沉积环境

The Longlinian(Early Permian) fusulinid communities and sedimentary environments in the Liuzhi-Panxian region,Guizhou

六枝—盘县地区的早二叠世隆林期地层,相区分异明显、类化石数量巨大。各相区类化石群落特征差异较大:半局限台地相为Staffella-Nankinella-Pisolina;台地边缘生物滩(礁)相为Parafusulina-Pseudofusulina;斜坡-盆地相为Pseudofusulina,进一步划分为近岸碳酸盐上缓坡环境的Staffella-Parafusulina-Wentzellophyllum群落、远岸碳酸盐上缓坡环境的Pamirina-Schwagerina-Pseudofusulina群落、碳酸盐下缓坡环境的Pseudofusulina-Robustoschwagerina-Kepingophyllum群落和盆地环境的Pseudofusulina-Schwagerina-Verbeekiella群落。

The fusulinid communities are quite variable in the Longlinian （Early Permian） strata in distinct sedimentary environments in the Liuzhi-Panxian region, Guizhou： StaffeUa-Nankinella-Pisolina community in the seml-restricted platform facies; Parafusulina-Pseudofusulina community in the platform-margin organic shoal （reefs） facies, and Pseudofusulina community in the slope-basin facies. Four communities may further be recognized for the last one outlined above, including： Sta.ffeUa-Parafusulina-Wentzellophyllum community in the nearshore upper carbonate ramp environment; Pamirina-Schwagerina-Pseudofusulina community in the offshore upper carbonate ramp environment; Pseudofusulina-Robustoschwagerina-Kepingophyllum community in the lower carbonate ramp environment, and Pseudofusulina-Schwagerina-Verbeekiella community in the basin environment .