埃迪卡拉纪晚期高家山生物群中瓶状微化石新材料  

NEW MATERIALS OF VASE-SHAPED MICROFOSSILS IN THE LATE EDIACARAN GAOJIASHAN BIOTA

作　　者：张崧 华洪[1] 代乔坤 骆劲舟 余艳 ZHANG Song;HUA Hong;DAI Qiaokun;LUO Jinzhou;YU Yan(Shaanxi Key Laboratory of Early Life and Environments and State Key Laboratory of Continental Dynamics,Department of Geology,Northwest University,Xian’an 710069,China)

机构地区：[1]早期生命与环境陕西省重点实验室,大陆动力学国家重点实验室/西北大学地质学系,西安710069

出　　处：《微体古生物学报》2023年第3期195-205,共11页Acta Micropalaeontologica Sinica

基　　金：国家自然科学基金项目(42172014,41621003,41890844,42130207)资助。

摘　　要：高家山瓶状微化石为一类发现于陕南宁强高家山生物群Conotubus-Gaojiashania-Protolagena组合带中的微体化石。借助扫描电子显微镜对高家山瓶状微化石的形态特征进行观察,发现在瓶状微化石外壳表面具有浅坑与水滴状构造;运用阴极发光技术研究化石壳壁结构和壳腔内部结构,发现一个瓶状微化石内部存在球状构造。这些化石新材料中的微构造不仅丰富了我们对高家山瓶状微化石形态的认知,还加深了我们对前寒武纪原生生物演化的理解。Gaojiashan vase-shaped microfossils(VSMs)are a kind of microfossils discovered in the ConotubusGaojiashania-Protolagena assemblage zone of the Gaojiashan biota in Ningqiang,southern Shaanxi.Here,Gaojiashan VSMs with shallow pits and tear-drop structures on the surface of the shells are detected by scanning electron microscopic(SEM)observation,also some spherical structures inside the shells are discovered by the Cathodoluminescence(CL)technology.The microstructure in the new fossil materials not only enriches our knowledge of the morphology of Gaojiashan VSMs,but also gives us further understanding of the evolution of Precambrian protists.

关 键 词：高家山瓶状微化石 微构造 原生生物 高家山生物群 前寒武纪 

分 类 号：Q911.2[天文地球—古生物学与地层学]