带着不同的生物组成和多样性，出产澄江生物群化石的下寒武统筇竹寺组玉案山段，在滇东地区具有广泛的出露，而且在这些露头中，海口和澄江地区玉案山段以化石生物多样性高，软体附肢保存的最好而最为著名。昆明周边海晏地区位于澄江和海口剖面之间，地理位置及其重要，该地区新的澄江生物群化石组合的发现（N>2000块），经过初步研究目前至少具有9个门类38种，以及8种分类未定疑难类。特别地我们在该地区还发现了稀少的保存软体附肢的伸长塞尔扣克虫，双头刺节虫和帚虫。尽管在目前阶段我们不能准确判断该地区筇竹寺组玉案山段是否缺失，但根据该地区收集的化石组成和多样性初步分析，大体上该地露头总的生物面貌相当于澄江，海口地区筇竹寺组玉案山段的第6、7层化石富集层生物量。该地区化石组合的成分和海口和澄江地区既有相似又有区别，所以该地区澄江生物群化石组合深入研究，在揭示澄江生物群分布特点和埋藏规律方面具有重要意义。

With different biological compositions and biodiversity, outcrops of the Qiongzhusi Formation Yu’anshan Member, where yield Chengjiang biota fossils, widely are exposed in eastern Yunnan. Among them, Yu’anshan Member in Haikou and Chengjiang areas is gaining a remarkable reputation for having preserved high biodiversity and soft-bodied fossils.In this study, Haiyan area lies between Haikou and Chengjiang and near to Kunming, accordingly showing an important geographical position. The preliminary study suggests that new Chenajiang biota fossil assemblage (N>2000) consist of 9 groups 38 species at least, together with 8 uncertain species, while we also found new Eophoronis chengjiangensis, Selkirkia? elongata and Urokodia aequalis with important soft-bodied informations, previously their phylogenic positions are strongly debated.Though we cannot exactly appraise if the deposit of Yu’anshan Member in this area is complete or absence, but based on the preliminary analysis of fossils assemblage, in term of biological features, roughly these ourcrops in Haiyan area are equivalent to the sixth and the seventh fossil strata of Yu’anshan Member in Chengjiang and Haikou areas. Compared with the fossil assemblage from Haikou and Chengjiang areas, the composition and biodiversity in Haiyan shows similarity, as well as the difference, so the further study will make important significance in revealing distribution and taphonomic characters of Chengjiang biota fossils.