福建武平中二叠统童子岩组的小有孔虫

THE MIDDLE PERMIAN SMALLER FORAMINIFERAL FROM THE TUNGTZEYEN FORMATION OF WUPING, FUJIAN

本文首次报道福建武平地区中二叠统童子岩组中与复通道 ( Polydiexodina)群共生的小有孔虫动物群 1 8属 44种 ,其中新种 3个 ,该动物群在国内很少报道。通过这一小有孔虫群的研究 ,为童子岩组的地层时代归属提供了又一佐证 ,对该地区童子岩组中的灰岩层古生态特征也作了简要的讨论。

The Tungtzeyen Formation (Middle Permian) is well developed and widespread in Fujian. This Formation consists of coal bearing strata mainly of clastic sediments. The biogenic limestone and clastic biogenic limestone among the coal bearing strata are rich in fusulinid ( Polydiexodina ) fauna and smaller foraminifers. The smaller Foraminiferal fauna described and illustrated in this paper is now first reported from the Middle Permian Tungtzeyen Formation in Ninyang Area of Wuping County, Fujian, which comprises 44 species(including 3 new species) of 14 genera belonging to the Hemigordiopsis Hemigordius Assemblage. The present assemblage is correlated well with the early Middle Permian Hemigordiopsis Postendothyra scabra Assemblage from the Maokou an Stage in south China (Lin Jiaxing, Li Jiaxiang and Sun quanying, 1990). By studying the samller foraminifers, this article furnishes the evidence for the age of the Tungtzeyen Formation and a brief discussion on the environmental characteristic of limestone bed in the Tungtzeyen formation of this region.