High resolution trilobite stratigraphy of the Lower-Middle Ordovician Oland Series of Baltoscandia

被引:28
|
作者
Paernaste, Helje [1 ]
Bergstrom, Jan [2 ]
Zhou Zhiyi [3 ]
机构
[1] Tallinn Univ Technol, Inst Geol, EE-19086 Tallinn, Estonia
[2] Swedish Museum Nat Hist, Dept Palaeozool, SE-10405 Stockholm, Sweden
[3] Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, Nanjing 210008, Peoples R China
关键词
Olenids; Ceratopyge; Asaphids; Tremadocian; Floian; Dapingian; Darriwilian; MEMBER TOYEN FORMATION; OSLO REGION; AGNOSTID TRILOBITES; CONODONT FAUNAS; ARENIG; NORWAY; STAGE; BALTICA;
D O I
10.1017/S0016756812000908
中图分类号
P [天文学、地球科学];
学科分类号
07 ;
摘要
The first ever list of the regional Oland Series (Tremadocian to mid Darriwilian) trilobites and agnostids from the whole of Baltoscandia is compiled. The study includes revision of systematics as well as vertical and horizontal distribution. This is necessary because of the uneven state of knowledge, some faunas having being studied recently, others not for more than a century. Three successive faunal types are recognized: the Olenid Fauna surviving from the Cambrian in black bituminous shale facies, the immigrating Ceratopyge Fauna, and the stabilized Asaphid Fauna. The latter fauna collapsed in the middle of Darriwilian and gave way to a set of new post-Olandian faunas.
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页码:509 / 518
页数:10
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