KMS Nanjing Institute of Geology and Palaeonotology,CAS
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. |
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