寒武纪凯里生物群在贵州镇远竹坪地区的发现  

DISCOVERY OF KAILI BIOTA FROM THE ZHENYUAN AREA OF GUIZHOU

作　　者：杨凯迪[1] 赵元龙[1] 杨兴莲[1] 达扬[1] 吴占廷[1] 

机构地区：[1]贵州大学资源与环境工程学院,贵阳550003

出　　处：《古生物学报》2011年第2期176-186,共11页Acta Palaeontologica Sinica

基　　金：国家自然科学基金项目"贵州寒武纪棘皮动物及杷榔动物群的研究"(40672018);全国地层委员会2010年基金项目;深圳古生物博物馆基金等资助

摘　　要：贵州东部镇远县竹坪地区付家冲寒武系凯里组中上部Oryctocephalus indicus带至Peronopsis taijiangensis带粉砂质泥岩、泥岩中新发现丰富的多门类化石组合,共计22属及3未定属种,分属海绵动物、节肢动物、腕足动物、软体动物、棘皮动物、腔肠动物,鳃曳动物、水母状动物及藻类9大门类,其中动物化石21属,包括卢氏中国始海百合、球状球形始海百合和贵州拟轮盘水母等凯里生物群的特征化石。镇远竹坪地区付家冲凯里生物群新化石点的发现,增加了凯里生物群分布范围,为整个凯里生物群及其形成环境变化的研究提供了新材料。A rich Cambrian fossil assemblage characteristic of the Kaili Biota has been discovered in mudstones and silty mudstones of the Kaili Formation at the Fujiachong section-situated about 1.8 km south of Zhuping village near Yangping Town of Zhenyuan County,in the southeastern quarter of Guizhou Province.Only the middle and upper horizons of the Kaili Formation are exposed in this section,which belongs to the Oryctocephalus indicus Zone and the lower part of the Peronopsis taijiang-ensis Zone.The fossil assemblage comprises a total of 22 species in 21 genera of sponges,coelentera-tes,arthropods,brachiopods,mollusks,echinoderms,priapulids and medusiform animals.Sinoeocrinus lui,Globoeocrinus globules and Pararotadiscus guizhouensis are important notable components of the Biota in the Zhenyuan area.This discovery at Zhuping expands knowledge of the geographical distribution of the Kaili Biota and provides new information for understanding its composition and sedimentary environment.

关 键 词：凯里生物群 凯里组 寒武系 贵州镇远 

分 类 号：Q915[天文地球—古生物学与地层学]