Middle to Late Ordovician (Darriwilian-Sandbian) Conodonts from the Dawangou Section, Kalpin Area of the Tarim Basin, Northwestern China
Forty-four conodont species are documented from the Dawangou section in the Tarim Basin, which spans the Darriwilian to Sandbian interval and is the global auxiliary stratotype for the base of the Upper Ordovician. Five conodont zones are recognized in this section, including the Yangtzeplacognathus...
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AUSTRALIAN MUSEUM
2011
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Online Access: | http://ir.nigpas.ac.cn/handle/332004/19873 https://doi.org/10.3853/j.0067-1975.63.2011.1586 |
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ftchinacscnigpas:oai:ir.nigpas.ac.cn:332004/19873 2023-05-15T17:22:37+02:00 Middle to Late Ordovician (Darriwilian-Sandbian) Conodonts from the Dawangou Section, Kalpin Area of the Tarim Basin, Northwestern China Zhen, Yong Yi Wang, Zhihao Zhang, Yuandong Bergstroem, Stig M. Percival, Ian G. Cheng, Junfeng 2011-11-30 http://ir.nigpas.ac.cn/handle/332004/19873 https://doi.org/10.3853/j.0067-1975.63.2011.1586 英语 eng AUSTRALIAN MUSEUM RECORDS OF THE AUSTRALIAN MUSEUM http://ir.nigpas.ac.cn/handle/332004/19873 doi:10.3853/j.0067-1975.63.2011.1586 Conodonts Ordovician Darriwilian Sandbian biostratigraphy Tarim China NEW-SOUTH-WALES EOPLACOGNATHUS CRASSUS CHEN NORTH-CENTRAL NEWFOUNDLAND PHA-PHUM AREA GRAPTOLITE BIOSTRATIGRAPHY ALLOCHTHONOUS LIMESTONES CENTRAL PRECORDILLERA WESTERN THAILAND NEW-BRUNSWICK WORLD ISLAND Zoology 期刊论文 2011 ftchinacscnigpas https://doi.org/10.3853/j.0067-1975.63.2011.1586 2019-08-14T12:44:29Z Forty-four conodont species are documented from the Dawangou section in the Tarim Basin, which spans the Darriwilian to Sandbian interval and is the global auxiliary stratotype for the base of the Upper Ordovician. Five conodont zones are recognized in this section, including the Yangtzeplacognathus crassus, Histiodella holodentata and H. kristinae zones in the upper part of the Dawangou Formation, the Pygodus anserinus Zone from the upper part of the Saergan Formation to the lower part of the Kanling Formation, and the Baltoniodus alobatus Zone in the upper part of the Kanling Formation. Presence of the P. serra Zone is based on occurrences of this species on shale bedding planes in the lower and middle Saergan Formation, but could not be confirmed in acid-leached samples studied from this interval. The Middle/Upper Ordovician boundary occurs within graptolitic black shale of the upper Saergan Formation. Although the boundary interval was intensively sampled, conodonts were very rare, probably due to stagnant or stratified basinal environments. This documentation of the conodont faunas and biostratigraphy of the Dawangou section is considered preliminary and more detailed conodont studies are required, but the remoteness of the site hinders the further extensive sample collection needed for this purpose. Report Newfoundland Nanjing Institute of Geology and Palaeontology: NIGPAS OpenIR (Chinese Academy of Sciences) Records of the Australian Museum 63 3 203 266 |
institution |
Open Polar |
collection |
Nanjing Institute of Geology and Palaeontology: NIGPAS OpenIR (Chinese Academy of Sciences) |
op_collection_id |
ftchinacscnigpas |
language |
English |
topic |
Conodonts Ordovician Darriwilian Sandbian biostratigraphy Tarim China NEW-SOUTH-WALES EOPLACOGNATHUS CRASSUS CHEN NORTH-CENTRAL NEWFOUNDLAND PHA-PHUM AREA GRAPTOLITE BIOSTRATIGRAPHY ALLOCHTHONOUS LIMESTONES CENTRAL PRECORDILLERA WESTERN THAILAND NEW-BRUNSWICK WORLD ISLAND Zoology |
spellingShingle |
Conodonts Ordovician Darriwilian Sandbian biostratigraphy Tarim China NEW-SOUTH-WALES EOPLACOGNATHUS CRASSUS CHEN NORTH-CENTRAL NEWFOUNDLAND PHA-PHUM AREA GRAPTOLITE BIOSTRATIGRAPHY ALLOCHTHONOUS LIMESTONES CENTRAL PRECORDILLERA WESTERN THAILAND NEW-BRUNSWICK WORLD ISLAND Zoology Zhen, Yong Yi Wang, Zhihao Zhang, Yuandong Bergstroem, Stig M. Percival, Ian G. Cheng, Junfeng Middle to Late Ordovician (Darriwilian-Sandbian) Conodonts from the Dawangou Section, Kalpin Area of the Tarim Basin, Northwestern China |
topic_facet |
Conodonts Ordovician Darriwilian Sandbian biostratigraphy Tarim China NEW-SOUTH-WALES EOPLACOGNATHUS CRASSUS CHEN NORTH-CENTRAL NEWFOUNDLAND PHA-PHUM AREA GRAPTOLITE BIOSTRATIGRAPHY ALLOCHTHONOUS LIMESTONES CENTRAL PRECORDILLERA WESTERN THAILAND NEW-BRUNSWICK WORLD ISLAND Zoology |
description |
Forty-four conodont species are documented from the Dawangou section in the Tarim Basin, which spans the Darriwilian to Sandbian interval and is the global auxiliary stratotype for the base of the Upper Ordovician. Five conodont zones are recognized in this section, including the Yangtzeplacognathus crassus, Histiodella holodentata and H. kristinae zones in the upper part of the Dawangou Formation, the Pygodus anserinus Zone from the upper part of the Saergan Formation to the lower part of the Kanling Formation, and the Baltoniodus alobatus Zone in the upper part of the Kanling Formation. Presence of the P. serra Zone is based on occurrences of this species on shale bedding planes in the lower and middle Saergan Formation, but could not be confirmed in acid-leached samples studied from this interval. The Middle/Upper Ordovician boundary occurs within graptolitic black shale of the upper Saergan Formation. Although the boundary interval was intensively sampled, conodonts were very rare, probably due to stagnant or stratified basinal environments. This documentation of the conodont faunas and biostratigraphy of the Dawangou section is considered preliminary and more detailed conodont studies are required, but the remoteness of the site hinders the further extensive sample collection needed for this purpose. |
format |
Report |
author |
Zhen, Yong Yi Wang, Zhihao Zhang, Yuandong Bergstroem, Stig M. Percival, Ian G. Cheng, Junfeng |
author_facet |
Zhen, Yong Yi Wang, Zhihao Zhang, Yuandong Bergstroem, Stig M. Percival, Ian G. Cheng, Junfeng |
author_sort |
Zhen, Yong Yi |
title |
Middle to Late Ordovician (Darriwilian-Sandbian) Conodonts from the Dawangou Section, Kalpin Area of the Tarim Basin, Northwestern China |
title_short |
Middle to Late Ordovician (Darriwilian-Sandbian) Conodonts from the Dawangou Section, Kalpin Area of the Tarim Basin, Northwestern China |
title_full |
Middle to Late Ordovician (Darriwilian-Sandbian) Conodonts from the Dawangou Section, Kalpin Area of the Tarim Basin, Northwestern China |
title_fullStr |
Middle to Late Ordovician (Darriwilian-Sandbian) Conodonts from the Dawangou Section, Kalpin Area of the Tarim Basin, Northwestern China |
title_full_unstemmed |
Middle to Late Ordovician (Darriwilian-Sandbian) Conodonts from the Dawangou Section, Kalpin Area of the Tarim Basin, Northwestern China |
title_sort |
middle to late ordovician (darriwilian-sandbian) conodonts from the dawangou section, kalpin area of the tarim basin, northwestern china |
publisher |
AUSTRALIAN MUSEUM |
publishDate |
2011 |
url |
http://ir.nigpas.ac.cn/handle/332004/19873 https://doi.org/10.3853/j.0067-1975.63.2011.1586 |
genre |
Newfoundland |
genre_facet |
Newfoundland |
op_relation |
RECORDS OF THE AUSTRALIAN MUSEUM http://ir.nigpas.ac.cn/handle/332004/19873 doi:10.3853/j.0067-1975.63.2011.1586 |
op_doi |
https://doi.org/10.3853/j.0067-1975.63.2011.1586 |
container_title |
Records of the Australian Museum |
container_volume |
63 |
container_issue |
3 |
container_start_page |
203 |
op_container_end_page |
266 |
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1766109392151773184 |