重庆中梁山长兴组腕足动物组合层序

Changxingian brachiopod assemblage sequence in Zhongliang Hill, Chongqing

重庆中梁山北风井剖面经杨遵仪等(1987)和朱梅丽、张世家(1987)研究后,目前已成为华南地区长兴阶重要剖面之一。笔者曾在此详细采集了长兴组的腕足动物化石。现就腕足动物群性质、组合序列等问题作一探讨。 野外工作期间,得到了重庆煤校张世家的帮助,室内整理期间朱梅丽给予了帮助。

Based on derailed biostraugraphic data, four brachiopod assemblages of the Cbangxing Formation in Zhongliang Hill, Chongqing are descendingjy established by the authors.They ar3 (4) Waagenites pigmaea-Notothyris crassa Assemblage, (3) Pelatchia traversa-Pengeycrella costellata Assemblage, (2) Cathaysia yongdingcnsis-Qtnglongia costallijormis Assemblage, and (1) Derbyia guangdongcnsis-Qinglongiu ovalis Assemblage.The correlation nf the bracbiopod faunas in this locality with those in other regions of the Tethys has also been discussed in this paper