云南省西部昌宁城西南近南北向分布的一套碎屑岩,以往被划入昌宁—永德鱼塘寨的下石炭统。近年来找到了早泥盆世的笔石、竹节石、植物等,从而证明了这一套碎屑岩的时代属于早泥盆世。 该地层由昌宁城西,经凤庆营盘、永德大雪山及其以南地区延展,产丰富的动、植物化石,为我国泥盆系的划分对比提供了重要的新资料。 A set of clastic rocks, distributed southwest of Changning City, west of Yunnan Province, was traced to the Lower Carboniferous of Changning - Yongde fish pond village. In recent years, the Early Devonian penoliths, bamboo stone, plants, etc. have been found, which proves that the era of this set of clastic rocks belonged to the Early Devonian. The strata are provided by Changning, west of the city, Fengyingyingpan, Yongde Snow Mountain and its extension to the south of the region, producing rich flora and fauna, which provide important new information for the division of Devonian in China.