Brachiopods from the Silurian “Lower Red Beds” of Wuhan（ E. Hubei, South China） : paleoecological and paleogeographical implications
发布时间：2025-03-18
点击次数：
- 影响因子：
- 4.1
- DOI码：
- 10.1007/s12583-024-0015-2
- 发表刊物：
- Journal of Earth Science
- 关键字：
- Telychian; Brachiopod; Middle Yangtze Region; Lower Red Beds; Paleocological
- 摘要：
- The age and sedimentary environment of the Silurian “Lower Red Beds” (LRBs), which occur widely in South China, have long been controversial because of the scarcity of index fossils. Recently, these beds have been dated by trilobites as middle-late Aeronian to early Telychian inage. Here, we report abundant brachiopods from the LRBs in Wuhan, Middle Yangtze Region, including atrypides (Meifodia hunanensis, Zygospiraella sp. 1, Zygospiraella sp. 2 and Nalivkinia? sp.), spiriferides (Striispirifer acuminiplicatus, Striispirifer? sp.), strophomenides (Eostropheodonta? sp. and Katastrophomena modesta), and linguliformeans (Anomaloglossa? sp. and Orbiculoidea? sp.). Most of these are common in the Leijiatun, Xiangshuyuan, Shihniulan, Niuchang, Lojoping, and Shamao formations in the Upper Yangtze Region. The discovery of brachiopods from the LRBs in Wuhan not only enrich the biodiversity of the LRBs in the Yangtze Region, where Meifodia, Zygospiraella, Katastrophomena and Eostropheodonta are first found in the LRBs, but also expand the paleogeographical distribution of brachiopods to Middle Lower Yangtze Region that first radiated after the end-Ordovician extinction. In addition, this brachiopod fauna also provides important implications for the sedimentary environment of LRBs during the Llandovery, which is usually developed in the nearshore shallow-water (BA1-2), althought this paper extends to the deeper parts of the shallow-marine (BA3-4).
- 合写作者：
- Yilong Liu,Liebin Huang
- 第一作者：
- Jiayi Yin
- 论文类型：
- 期刊论文
- 通讯作者：
- Yiming Gong,Ruiwen Zong
- 学科门类：
- 理学
- 发表时间：
- 2024-08-01
- 收录刊物：
- SCI