中文摘要：

贵州断杉剖面长兴阶上部发现的腕足类化石包括：Paracrurithyris pigmaea , Attenuatella mengi , Neochonetes （Huangichonetes） substrophomenoides, Spinomargini fera kueichowensis, Anidanthus mucronata , ？ Hustedia orbicostata , Pygmochonetes sp. ,Crurithyris sp. 和Martiniasp．。通过对该腕足动物群的分析以及和其他地区同时期的腕足动物群的对比，认为断杉剖面腕足动物群是深水分子与浅水分子混生的动物群，同时也是暖水分子与凉水分子混生的动物群。深水分子与浅水分子混生的特征与长兴期晚期断杉剖面位于深水盆地相的边缘，并且离浅水碳酸盐岩台地较近的古地理位置一致；暖水分子与凉水分子混生暗示扬子海盆当时可能存在洋流活动。

英文摘要：

This paper describes a unique brachiopod fauna from the upper part of the Talung Formation at the Duanshan Section, southern Guizhou, southwest China. This fauna includes： Paracrurithyris pigmaea , Attenuatella mengi , Neochonetes （ Huangichonetes） substropkomenoides, Spinomargini f era kueichowensis , Anidanthus mucronata , ？ Hustedia orbicostata , P ygmochonetes sp. , Crurith yris sp. and Martinia sp.. Based on an analysis of the taxonomic composition of the brachiopod fauna, and a comparison with other contemporaneous brachiopod faunas, this brachiopod fauna is characterized by deep water elements mixed with shallow-water elements, and by warm-water elements mixed with cool-water elements. The occurrence of the deep- and shallow-water mixed fauna was contributed by the unique paleogeographi- cal location of the Duanshan Section where was in deep-water facies nearby shallow water carbonate facies. The warm- and cool-water mixed fauna indicates ocean current influenced biota in the late Changhsingian in South China.