关山生物群是继澄江生物群之后云南寒武纪早期地层中发现的又一个特异埋藏的化石宝库。现已报道10多个门类的化石动物，对研究寒武纪生命大爆发、后生动物起源及演化、寒武纪早期生态系统的复原等重大学术问题具有特殊的意义。始海百合属于棘皮动物门海蕾亚门，于寒武纪早期出现，志留纪灭绝。笔者将荧光显微镜等先进成像方式与传统的研究手段相结合，对新采集到的关山生物群始海百合化石标本进行深入细致的系统古生物学研究，对其精细形态学构造和生活习性获得更深入的了解。这对于认识寒武纪早期的生物多样性和棘皮动物的演化都具有重要的意义。

Guanshan biota is another Cambrian fossil assemblage with exceptional preservation found in Yunnan after the early Cambrian Chengjiang biota.More than 10 animal taxa have been reported from Guanshan,which have significantly improved our knowledge of the Cambrian explosion,of the origin and evolution of metazoan,and of the reconstruction of the early Cambrian ecosystem.The relatively rare eocrinoids that belong to the Echinodermata(Blastozoa)first appeared in the early Cambrian and became extinct in the Silurian.We hereby applied traditional as well as advanced imaging techniques(fluorescence microscope)to reveal morphological details of eocrinoid material recently collected from Guanshan,which in turn improves our understandings about the possible life habits of this animal.This study is important for understanding the biodiversity and early evolution of Echinodermata in the early Cambrian.

国家自然科学基金 NSFC U1302232，4137031和 NSFC 41528202资助