On the basis of a detailed study of the Late Paleozoic section in the Bogexi area,Batang county,western Sichuan,six lithostratigraphic formations may be recognized in the study area.

• 在对四川西部巴塘县波格西地区晚古生代地层剖面研究的基础上，从岩性、岩相分析入手，将该区地层划分为6个组级岩石地层单位。