中国科学院南京地质古生物研究所机构知识库

The Guanshan biota from eastern Yunnan (Cambrian Series 2, early Stage 4) is a Burgess Shale-type fossil biota with abundant exceptionally preserved soft-bodied fossils after the discovery of the well-known Cambrian Chengjiang fauna and Kaili biota in South China. The geological settings, sedimentology, taphonomy, and the fossil assemblage of the Guanshan biota are briefly summarized here. The Guanshan biota consists of about 60 taxa belonging to more than 10 metazoan groups and algae, among which the lobopods, eldonids, hyolithids with helens, and green algae are reported for the first time. The common occurrence of soft-bodied preservation in many groups, notably the trilobites and brachiopods, makes the Guanshan biota a significant fossil lagerstatte for understanding the metazoan evolution during Cambrian explosion and taphonomy of the Burgess Shale-type fossils.