Potential Global Standard Stratotype-section and Point (GSSP) for a Cambrian stage boundary defined by the first appearance of the trilobite Ptychagnostus atavus, Drum Mountains, Utah, USA

doi:10.1016/j.geobios.2003.03.007

	Potential Global Standard Stratotype-section and Point (GSSP) for a Cambrian stage boundary defined by the first appearance of the trilobite Ptychagnostus atavus, Drum Mountains, Utah, USA
	Babcock, LE ; Rees, MN ; Robison, RA ; Langenburg, ES ; Peng, SC (彭善池)
	2004-03-01
发表期刊	GEOBIOS
ISSN	0016-6995
卷号	37 期号:2 页码:149-158
摘要	The base of the Ptychagnostus (or Acidusus) atavus Zone is one of the most clearly recognizable horizons on an intercontinental scale in the Cambrian System, and would serve as an excellent position for the base of a new stage-level chronostratigraphic subdivision. Among well-exposed, readily accessible sections in Laurentia, the "Stratotype Ridge" section, Drum Mountains, western Utah, USA, is perhaps the most suitable for a Global Standard Stratotype-section and Point (GSSP) defined by the first appearance datum (FAD) of the cosmopolitan agnostoid trilobite P. atavus. In the "Stratotype Ridge" section, the FAD of R atavus occurs near the base of a calcisiltite bed 62 m above the base of the Wheeler Formation. A position corresponding closely to this horizon can be recognized with precision in Gondwana, Siberia, Kazakhstan, and Baltica using a combination of stratigraphic tools, the most useful of which are trilobite biostratigraphy, conodont biostratigraphy, and sequence stratigraphy. Brachiopod biostratigraphy and chemostratigraphy provide general constraints on the position of the horizon intercontinentally. (C) 2004 Elsevier SAS. All rights reserved.
关键词	Cambrian Chronostratigraphy Gssp Trilobite Laurentia Utah
DOI	10.1016/j.geobios.2003.03.007
语种	英语
关键词[WOS]	Western Utah ; North-america ; Middle ; Stratigraphy ; Divisions ; Evolution ; Duration ; Platform ; Series ; House
WOS研究方向	Paleontology
WOS类目	Paleontology
WOS记录号	WOS:000221056000004
出版者	EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER
文献类型	期刊论文
条目标识符	http://ir.nigpas.ac.cn/handle/332004/1058
专题	中国科学院南京地质古生物研究所其他
通讯作者	Babcock, LE
作者单位	1.Ohio State Univ, Dept Geol Sci, Columbus, OH 43210 USA 2.Univ Nevada, Dept Geosci, Las Vegas, NV 89145 USA 3.Univ Kansas, Dept Geol, Lawrence, KS 66045 USA 4.Utah State Univ, Dept Geol, Logan, UT 84322 USA 5.Chinese Acad Sci, Nanjing Inst Geol & Palaentol, Nanjing 210008, Peoples R China
推荐引用方式 GB/T 7714	Babcock, LE,Rees, MN,Robison, RA,et al. Potential Global Standard Stratotype-section and Point (GSSP) for a Cambrian stage boundary defined by the first appearance of the trilobite Ptychagnostus atavus, Drum Mountains, Utah, USA[J]. GEOBIOS,2004,37(2):149-158.
APA	Babcock, LE,Rees, MN,Robison, RA,Langenburg, ES,&Peng, SC .(2004).Potential Global Standard Stratotype-section and Point (GSSP) for a Cambrian stage boundary defined by the first appearance of the trilobite Ptychagnostus atavus, Drum Mountains, Utah, USA.GEOBIOS,37(2),149-158.
MLA	Babcock, LE,et al."Potential Global Standard Stratotype-section and Point (GSSP) for a Cambrian stage boundary defined by the first appearance of the trilobite Ptychagnostus atavus, Drum Mountains, Utah, USA".GEOBIOS 37.2(2004):149-158.