Anisian ammonoids from Qingyan, Southwestern China: biostratigraphical implications for the age of the Qingyan Formation

doi:10.1007/s00015-008-1274-0

	Anisian ammonoids from Qingyan, Southwestern China: biostratigraphical implications for the age of the Qingyan Formation
	Stiller, Frank 1; Bucher, Hugo 2,3
	2008-09-01
发表期刊	SWISS JOURNAL OF GEOSCIENCES
ISSN	1661-8726
卷号	101 期号:2 页码:547-562
摘要	The Upper Qingyan Formation in the northeastern vicinity of Qingyan, Guizhou Province, southwestern China, yields an ammonoid sequence comprising a latest middle Anisian assemblage in its lower part followed by an earliest late Anisian assemblage in its middle and upper parts. Age-diagnostic genera of the lower assemblage include Bulogites and Acrochordiceras; additional genera comprise Proarcestes, Sageceras, and Beyrichitinae gen. indet. This assemblage well correlates with the Bulogites mojsvari Subzone in northwestern Nevada and the Bulogites zoldianus Zone in Lombardy and Hungary. The upper assemblage comprises the age-diagnostic genera Rieppelites and Judicarites; additional characteristic genera include Ptychites and Gosauites. This assemblage correlates with the Billingsites cordeyi Subzone in northwestern Nevada and the Rieppelites cimeganus Zone in Lombardy. The middle/late Anisian boundary is situated in the upper middle part of the highly fossiliferous section at Leidapo. Judging from re-study of available and figured specimens, reports of stratigraphically younger taxa such as Paraceratites trinodosus from the Upper Qingyan Formation of this area are based on misidentifications. The time interval represented by the Qingyan Formation at its type locality is not equal to the Anisian as has long been supposed in Chinese stratigraphy. An earliest late Anisian age for the uppermost strata of the Qingyan Formation in this area is the only available, wel-cumented age-constraint.
关键词	ammonoids Anisian Qingyan Formation Southwestern China taxonomy biostratigraphy
DOI	10.1007/s00015-008-1274-0
语种	英语
关键词[WOS]	SOUTHERN CHINA ; MIDDLE ; BIVALVE
WOS研究方向	Geology ; Paleontology
WOS类目	Geosciences, Multidisciplinary ; Paleontology
WOS记录号	WOS:000259820900020
出版者	BIRKHAUSER VERLAG AG
文献类型	期刊论文
条目标识符	http://ir.nigpas.ac.cn/handle/332004/191
专题	中国科学院南京地质古生物研究所
通讯作者	Stiller, Frank
作者单位	1.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, Nanjing 210008, Peoples R China 2.Univ Zurich, Inst Palaeontol, CH-8006 Zurich, Switzerland 3.Univ Zurich, Museum Palaeontol, CH-8006 Zurich, Switzerland
第一作者单位	中国科学院南京地质古生物研究所
通讯作者单位	中国科学院南京地质古生物研究所
推荐引用方式 GB/T 7714	Stiller, Frank,Bucher, Hugo. Anisian ammonoids from Qingyan, Southwestern China: biostratigraphical implications for the age of the Qingyan Formation[J]. SWISS JOURNAL OF GEOSCIENCES,2008,101(2):547-562.
APA	Stiller, Frank,&Bucher, Hugo.(2008).Anisian ammonoids from Qingyan, Southwestern China: biostratigraphical implications for the age of the Qingyan Formation.SWISS JOURNAL OF GEOSCIENCES,101(2),547-562.
MLA	Stiller, Frank,et al."Anisian ammonoids from Qingyan, Southwestern China: biostratigraphical implications for the age of the Qingyan Formation".SWISS JOURNAL OF GEOSCIENCES 101.2(2008):547-562.