Middle Telychian (Llandovery, Silurian) graptolite and chitinozoan faunas and biostratigraphy of the upper part of the Xiushan Formation in the Xiushan area, southwestern China
文献类型：期刊论文
| 作者 | Wang, Wenhui1; Liu, Bangyin1; Song, Jiaqi2,3; Li, Wenjie3; Fang, Xiang2,3; Zhang, Yuandong2,3 |
| 刊名 | BULLETIN OF GEOSCIENCES
 |
| 出版日期 | 2025 |
| 卷号 | 100期号:4页码:529-545 |
| ISSN号 | 1214-1119 |
| DOI | 10.3140/bull.geosci.1927 |
| 通讯作者 | Fang, Xiang(xfang@nigpas.ac.cn) |
| 英文摘要 | The middle Telychian (Llandovery, Silurian) Xiushan Fauna (characterized by abundant benthic brachiopods, cephalopods and trilobites) from South China is important in understanding the re-radiation of the Early Palaeozoic Evolutionary Fauna after the Late Ordovician Mass Extinction. Although previous integrated studies based on graptolites, conodonts and chitinozoans have resulted in the erection of a biostratigraphical framework for the Xiushan Fauna, the precise biostratigraphical correlation has long been debated, due to the sporadic occurrence of biozonal index fossils, e.g. only a few graptolites in carbonate clasts and siliciclastic rocks. Here, we report a moderately wellpreserved graptolite fauna from the interbedded shaly layers of the Xiushan Formation in Chongqing Municipality, southwestern China. The graptolites and chitinozoans from the Xiushan Formation at the Hujiadongkan section suggest a middle Telychian (Llandovery, Silurian) age for the upper part of the Xiushan Formation, possibly corresponding to the upper part of the Monoclimacis crenulata to the lower Oktavites spiralis biozones, for the graptolite assemblages, and the Angochitina longicollis chitinozoan Biozone. This age identification, based on the co-occurrences of graptolites and chitinozoans at the Hujiadongkan section, agrees with earlier biostratigraphical studies based on other fossil groups, e.g. conodonts for the Xiushan Fauna recovered from the upper part of the Xiushan Formation. The graptolitic shales in the upper part of the Xiushan Formation may provide new evidence for high sea-levels in the middle Telychian, as have been reported worldwide. center dot Key words: early Silurian, Chongqing Municipality, Xiushan Formation, graptolite, chitinozoan, biostratigraphy. |
| WOS关键词 | INTEGRATED BIOSTRATIGRAPHY ; UPPER ORDOVICIAN ; CORE ; SECTION |
| 资助项目 | National Natural Science Foundation of China[42472027] ; National Natural Science Foundation of China[42472018] ; National Key Research and Development Program[2023YFF0803703] ; State Key Laboratory of Palaeobiology and Stratigraphy[213120] ; State Key Laboratory of Palaeobiology and Stratigraphy[20231101] ; Natural Science Foundation of Hunan Province[2023JJ20063] ; Natural Science Foundation of Hunan Province[735] |
| WOS研究方向 | Geology ; Paleontology |
| 语种 | 英语 |
| WOS记录号 | WOS:001685853600011 |
| 出版者 | CZECH GEOLOGICAL SURVEY |
| 资助机构 | National Natural Science Foundation of China ; National Key Research and Development Program ; State Key Laboratory of Palaeobiology and Stratigraphy ; Natural Science Foundation of Hunan Province |
| 源URL | [http://ir.nigpas.ac.cn/handle/332004/46186]  |
| 专题 | 中国科学院南京地质古生物研究所 |
| 通讯作者 | Fang, Xiang |
| 作者单位 | 1.Cent South Univ, Sch Geosci & InfoPhys, Changsha 410083, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, State Key Lab Palaeobiol & Stratig, Nanjing Inst Geol & Palaeontol, Nanjing 210008, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Wenhui,Liu, Bangyin,Song, Jiaqi,et al. Middle Telychian (Llandovery, Silurian) graptolite and chitinozoan faunas and biostratigraphy of the upper part of the Xiushan Formation in the Xiushan area, southwestern China[J]. BULLETIN OF GEOSCIENCES,2025,100(4):529-545. |
| APA | Wang, Wenhui,Liu, Bangyin,Song, Jiaqi,Li, Wenjie,Fang, Xiang,&Zhang, Yuandong.(2025).Middle Telychian (Llandovery, Silurian) graptolite and chitinozoan faunas and biostratigraphy of the upper part of the Xiushan Formation in the Xiushan area, southwestern China.BULLETIN OF GEOSCIENCES,100(4),529-545. |
| MLA | Wang, Wenhui,et al."Middle Telychian (Llandovery, Silurian) graptolite and chitinozoan faunas and biostratigraphy of the upper part of the Xiushan Formation in the Xiushan area, southwestern China".BULLETIN OF GEOSCIENCES 100.4(2025):529-545. |
入库方式： OAI收割
来源：南京地质古生物研究所
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