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陕南寒武系底部磷酸盐化保存的寒武松藻属化石新知 被引量:8

THE NEW RECORD OF PHOSPHATIZED CAMBRICODIUM FOSSILS FROM THE BASAL CAMBRIAN OF THE SOUTHERN SHAANXI,CHINA
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摘要 本文描述了产于我国陕西西乡寒武系底部磷矿层中的藻类化石,在标本中发现多种藻枝保存类型和可能的"固着器"等特征;由于藻体微小、藻管中空等特征而将其归入蓝菌类寒武松藻属;可为早寒武世早期的藻类繁盛提供了新的小生境和新的食物来源、加速了后生动物的进化。 The paper describes the fossils of Cambricodium collected from the basal Cambrian phosphoric strata of the Kuanchanpu Member of Xixiang County,Shaanxi Province, China. There are some preservation features of "dichoto-mic branche" and "holdfast" in Cambricodium fossils. Due to the characteristics such as small size and hollow tube we classify these fossils into Cyanobacteria, Cambricodiurn Jiang, 1982. The Cyanobacteria bloom provides a new niche with new food sources and thus possibly accelerates the evolution of metazoan in early Cambrian.
出处 《微体古生物学报》 CSCD 北大核心 2014年第1期98-103,共6页 Acta Micropalaeontologica Sinica
基金 国家自然科学基金项目(No.41072012) 中央高校基金重点项目(CHD2012ZD017) 中国科学院南京地质古生物研究所现代古生物学与地层学国家重点实验室开放课题(No.113115) 西部矿产资源与地质工程教育部重点实验室及长安大学第8届"挑战杯"大学生课外学术科技作品组委会资助
关键词 寒武松藻属 寒武系底部 磷酸盐化 蓝菌类 西乡 陕西 Cambricodium, the basal Cambrian, Phosphatization, Cyanobacteria, Xixiang County, Shaanxi Province, China
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