The conchostracan subgenus Orthestheria (Migransia) from the Tacuarembo Formation (Late Jurassic ? Early Cretaceous, Uruguay) with notes on its geological age

doi:10.1016/j.jsames.2003.02.001

	The conchostracan subgenus Orthestheria (Migransia) from the Tacuarembo Formation (Late Jurassic ? Early Cretaceous, Uruguay) with notes on its geological age
	Shen, YB (沈炎彬); Gallego, OF ; Martinez, S
	2004-04-01
发表期刊	JOURNAL OF SOUTH AMERICAN EARTH SCIENCES
ISSN	0895-9811
卷号	16 期号:7 页码:615-622
摘要	Conchostracans from the Tacuarembo Formation s.s. of Uruguay are reassigned to the subgenus Orthestheria (Migransia) Chen and Shen. They show more similarities to genera of Late Jurassic age in the Congo Basin and China than to those of Early Cretaceous age. On the basis of the character of the conchostracans, we suggest that the Tacuarembo Formation is unlikely to be older than Late Jurassic. It is probably Kimmeridgian, but an Early Cretaceous age cannot be excluded. This finding is consistent with isotopic dating of the overlying basalts, as well as the age range of recently described fossil freshwater sharks. (C) 2004 Published by Elsevier Ltd.
关键词	Conchostracans Late Jurassic Tacuarembo Formation Uruguay
DOI	10.1016/j.jsames.2003.02.001
语种	英语
WOS研究方向	Geology
WOS类目	Geosciences, Multidisciplinary
WOS记录号	WOS:000223106200006
出版者	PERGAMON-ELSEVIER SCIENCE LTD
文献类型	期刊论文
条目标识符	http://ir.nigpas.ac.cn/handle/332004/1079
专题	中国科学院南京地质古生物研究所
通讯作者	Gallego, OF
作者单位	1.Consejo Nacl Invest Cient & Tecn, Fac Ciencias Exactas & Nat & Agrimensura, Dept Biol Paleontol, RA-3400 Corrientes, Argentina 2.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, Nanjing 210008, Peoples R China 3.State Key Lab Palaeobiol & Strat, Nanjing 210008, Peoples R China 4.Inst Geol & Paleontol, Fac Ciencias, Dept Paleontol, Montevideo 11400, Uruguay
推荐引用方式 GB/T 7714	Shen, YB ,Gallego, OF,Martinez, S. The conchostracan subgenus Orthestheria (Migransia) from the Tacuarembo Formation (Late Jurassic ? Early Cretaceous, Uruguay) with notes on its geological age[J]. JOURNAL OF SOUTH AMERICAN EARTH SCIENCES,2004,16(7):615-622.
APA	Shen, YB ,Gallego, OF,&Martinez, S.(2004).The conchostracan subgenus Orthestheria (Migransia) from the Tacuarembo Formation (Late Jurassic ? Early Cretaceous, Uruguay) with notes on its geological age.JOURNAL OF SOUTH AMERICAN EARTH SCIENCES,16(7),615-622.
MLA	Shen, YB ,et al."The conchostracan subgenus Orthestheria (Migransia) from the Tacuarembo Formation (Late Jurassic ? Early Cretaceous, Uruguay) with notes on its geological age".JOURNAL OF SOUTH AMERICAN EARTH SCIENCES 16.7(2004):615-622.