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陕西镇巴早寒武世的牙形刺形化石
引用本文:解永顺.陕西镇巴早寒武世的牙形刺形化石[J].成都理工大学学报(自然科学版),1990(4).
作者姓名:解永顺
作者单位:成都地质学院地质学系
摘    要:记述了陕西镇巴小洋坝下寒武统筇竹寺阶灯影组西蒿坪段及水井沱组内的一些牙形刺形化石,共计4个属7个种,其中新属及新种各一个,我国首次发现的有2属4种。它们中的许多分子具有地理分布广泛、演化迅速的特点,已成为早寒武世洲际地层对比的重要依据。

关 键 词:镇巴  早寒武世  牙形刺形化石

THE CONODONT-LIKE FOSSILS OF EARLY CAMBRIAN IN ZHENBA, SHANXI
Xie Yongshun.THE CONODONT-LIKE FOSSILS OF EARLY CAMBRIAN IN ZHENBA, SHANXI[J].Journal of Chengdu University of Technology: Sci & Technol Ed,1990(4).
Authors:Xie Yongshun
Institution:Xie Yongshun
Abstract:This paper deals with the implication of the conodont-like fossils of the Earl. -Middle Cam-brian, according to their morphology, texture and distribution. Some elements of conodont-like fossilsare found in Xiaoyangba, Zhenba, Shanxi from Xihaoping Member of Dengying Formation and Shui-jingtuo Formation of Lower Cam brian. Four genera and seven species conodont-like fossils are de-scribed systematically. Among them 1 genus and species are new, and 2 genera and 4 species are firstfound in China. They are Grapparodus bisulcutus(Muller), G. communis sp. nov., Amphigeisina danica(Poulson), Hagionella cultrata (gen. nov.), Rhombocorniculum ualliser (Mambetov), Rho. insoluturn Mis-sarzhevsky, Pho. cancellatum (Conbbold). Many of them are characterized by wide geographic distribu-tion and quick evolution, and may be the important basis of stratigraphic correlation of Early Cambri-an in the world.
Keywords:conodont-like fossils  Early Cambrian  Zhenba
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