【摘要】 以蓟县中、上元古界层型剖面所产宏观藻类化石为重点 ,兼顾京冀辽等邻区 ,全面总结和系统讨论了该区中、晚元古代宏观藻类化石的研究简史、产出层位、区域分布、化石组合、生物群特征、可能的系统分类 ,以及国内外对比与地层学意义 ,初步探讨了宏观藻类植物群在中、新元古代的发生、发展与更迭 ,追索宏观真核生物起源等。通过对燕辽地区中、新元古代宏观藻类的研究与总结 ,把显生宙行之有效的生物地层学方法运用于前寒武纪地层研究中 ,进行国内外前寒武纪地层的对比 ,显然具有重要的地层学意义。同时 ,对探讨地球早期生命演化也具有重要的理论意义更多还原

【Abstract】 Megascopic algal fossils from the Jingeryu Formation(Qingbaikou System) in Jixian County,Tianjin City were firstly found by Lu Zongbin and Duan Chenghua in 1978 year. Then in 1980’s,megascopic algal fossils from Gaoyuzhuang Formation(Changcheng System),Wumishan Formation,Hongshuizhuang Formation,Tieling Formation(Jixian System),and Xiamaling Formation,Changlongshan Formation,Jingeryu Formation(Qingbaikou System) have been widely and thoroughly studied by Duan Chenghua,Du Rulin, Xiao Zongzheng, and Niu Shaowu, including following genera: Grypania, Wumishania,cf.Oscillatoriopsis,Chuaria,Shouhsienia,Ovidiscina,Pumilibaxa,Glosso-phyton,Fusiphysa,Subtrigonia,Yanshantaenia,Tyrasotaenia,Longfengshania,Paralongfengshania,Paralaminaria etc.In 1990’s,the megascopic algal fossils from the Tuanshanzi Formation(1 700 Ma) in Jixian County,Tianjin,and the Changzhougou Formation(1 800 Ma) in Xinglong and Kuancheng Counties,Hebei Province were found by Zhu Shixing,Yan Yuzhong,Sun Shunfen and Chen Huineng et al., including:Chuaria-like,Shouhsienia-like,Tawuia-like,Tuanshanzia,Changchengia,Eopalmaria,Proterotaenia.As a result of the discovery of these fossils from the Tuanshanzi Formation and Changzhougou Formation,the research of the megascopic algal fossils from the Middle-Late Proterozoic have made considerable headway in Yan-Liao area,Northern China.更多还原