The stratigraphic and geographic occurrences of Permo-Triassic tetrapods in the Bogda Mountains, NW China - Implications of a new cyclostratigraphic framework and Bayesian age model
文献类型：期刊论文
| 作者 | Angielczyk, Kenneth D.6; Liu, Jun3,4,5 ; Sidor, Christian A.2; Yang, Wan1
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| 刊名 | JOURNAL OF AFRICAN EARTH SCIENCES
 |
| 出版日期 | 2022-11-01 |
| 卷号 | 195页码:14 |
| 关键词 | Permian Triassic Tetrapoda Dicynodontia Lystrosaurus Permo-triassic extinction |
| ISSN号 | 1464-343X |
| DOI | 10.1016/j.jafrearsci.2022.104655 |
| 通讯作者 | Angielczyk, Kenneth D.(kangielczyk@fieldmuseum.org) |
| 英文摘要 | The Junggar and Turpan basins of Xinjiang Uygur Autonomous Region, northwest China, host a well-preserved terrestrial Permo-Triassic boundary sequence exposed along the northern and southern flanks of the Bogda Mountains. During the Permo-Triassic transition, this region was located in mid-latitude northeast Pangaea, making it an important comparison to the well-studied higher latitude record of the South African Karoo Basin. Broad similarities are apparent between the tetrapod fossil records of both areas, such as the reported co-occurrence of Dicynodon-grade dicynodontoids and Lystrosaurus in the upper Permian and the high abundance of Lystrosaurus in the Lower Triassic. However, the exact placement of the Permo-Triassic boundary in Xinjiang and South Africa has been debated. In the Chinese sections, the Permo-Triassic boundary falls within the upper Guodikeng Formation (= upper Wutonggou low order cycle), but several horizons have been proposed based on biostratigraphy, chemostratigraphy, and paleomagnetic data. A new Bayesian age model that is calibrated by multiple radiometric dates and tied to detailed litho-and cyclostratigraphic data offers new insight into the location of the Permo-Triassic boundary in Xinjiang and the opportunity to reconsider tetrapod occurrences in a highly resolved chronostratigraphic framework. We investigated the positions of new and historic tetrapod collections relative to the revised Permo-Triassic boundary, including uncertainties about the locations of key historic specimens. The stratigraphic range of Dicynodon-grade dicynodontoids in Xinjiang is poorly constrained: most specimens, including the holotype of Jimusaria sinkianensis, cannot be precisely placed relative to the Permo-Triassic boundary. A new specimen of Turfanodon sp. for which we have reliable data occurs in the upper Permian. Despite their previous treatment as Permian in age, most Bogda chroniosuchians were collected in strata above the Permo-Triassic boundary and the therocephalian Dalongkoua fuae also may be Triassic. Some prior placements of the Permo-Triassic boundary in Xinjiang imply an upper Permian lowest occurrence for the cosmopolitan dicynodont Lystrosaurus, but all Lystrosaurus specimens that we can precisely locate fall above the Permo-Triassic boundary. The high abundance of Lystrosaurus in the well-dated Early Triassic of Xinjiang sug-gests an Early Triassic age for the interval of greatest Lystrosaurus abundance in the Karoo Basin, where the exact ages of putative Permo-Triassic strata are more controversial. The Xinjiang record is an important datum for determining whether there was a single, globally synchronous time of highest Lystrosaurus abundance. |
| WOS关键词 | ZONE BEAUFORT GROUP ; KAROO BASIN ; SOUTH-AFRICA ; DIVERSITY PATTERNS ; BOUNDARY ; EXTINCTION ; THERAPSIDA ; XINJIANG ; BIOSTRATIGRAPHY ; DAPTOCEPHALUS |
| 资助项目 | U.S. National Science Foundation[EAR-1714829] ; U.S. National Science Foundation[EAR-1713787] ; U.S. National Science Foundation[EAR-1714749] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB26000000] |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000862929600002 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 资助机构 | U.S. National Science Foundation ; Strategic Priority Research Program of the Chinese Academy of Sciences |
| 源URL | [http://119.78.100.205/handle/311034/22030]  |
| 专题 | 古脊椎动物与古人类研究所_图书馆1 |
| 通讯作者 | Angielczyk, Kenneth D. |
| 作者单位 | 1.Missouri Univ Sci & Technol, Geol & Geophys Program, Rolla, MO 65409 USA 2.Univ Washington, Dept Biol, Burke Museum, Seattle, WA 98195 USA 3.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China 4.CAS Ctr Excellence Life & Paleoenvironment, Beijing 100044, Peoples R China 5.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Vertebrate Evolut & Human Origins, Beijing 100044, Peoples R China 6.Field Museum Nat Hist, Negaunee Integrat Res Ctr, Chicago, IL 60605 USA |
| 推荐引用方式 GB/T 7714 | Angielczyk, Kenneth D.,Liu, Jun,Sidor, Christian A.,et al. The stratigraphic and geographic occurrences of Permo-Triassic tetrapods in the Bogda Mountains, NW China - Implications of a new cyclostratigraphic framework and Bayesian age model[J]. JOURNAL OF AFRICAN EARTH SCIENCES,2022,195:14. |
| APA | Angielczyk, Kenneth D.,Liu, Jun,Sidor, Christian A.,&Yang, Wan.(2022).The stratigraphic and geographic occurrences of Permo-Triassic tetrapods in the Bogda Mountains, NW China - Implications of a new cyclostratigraphic framework and Bayesian age model.JOURNAL OF AFRICAN EARTH SCIENCES,195,14. |
| MLA | Angielczyk, Kenneth D.,et al."The stratigraphic and geographic occurrences of Permo-Triassic tetrapods in the Bogda Mountains, NW China - Implications of a new cyclostratigraphic framework and Bayesian age model".JOURNAL OF AFRICAN EARTH SCIENCES 195(2022):14. |
入库方式： OAI收割
来源：古脊椎动物与古人类研究所
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