| Title | Early and Middle Frasnian brachiopod faunas and turnover on the South China shelf |
| Authors | Ma, Xue-Ping Becker, Ralph Thomas Li, Hua Sun, Yuan-Yuan |
| Affiliation | Peking Univ, Dept Geol, Key Lab Organ Belts & Crustal Evolut, Beijing 100871, Peoples R China. Univ Munster, Inst Geol Palaontol, D-48149 Munster, Germany. Univ Munster, Geol Palaontol Museum, D-48149 Munster, Germany. |
| Keywords | Brachiopoda Cyrtospirifer faunal turnover Frasnian Devonian South China EXTINCTION REVISION LEVEL |
| Issue Date | 2006 |
| Publisher | acta palaeontologica polonica |
| Citation | ACTA PALAEONTOLOGICA POLONICA.2006,51,(4),789-812. |
| Abstract | The first appearance of the brachiopod Cyrtospirifer and related forms in the Late Devonian of South China significantly postdates the beginning of the Frasnian and the entry of the group in other parts of the world. Scattered data from different sections suggest that its first entry, associated with the emergence of other plicate spiriferids, such as theodossid and conispiriferid brachiopods, was late in the Middle Frasnian. At the same time, many rhynchonellids disappeared or became extinct locally in South China. This brachiopod faunal overturn near the Palmatolepis punctata-Early Pa. hassi zonal boundary is the most significant event in the Early-Middle Frasnian of South China, characterized by about a 35% loss of existing species and the flourishing of the plicate spiriferids, which was coeval with the end of a major biogeochemical perturbation recently recognized in the Pa. punctata Zone. By contrast, atrypid brachiopods do not seem to show any significant diversity change. The brachiopod faunal change was probably related to a (local?) transgressive event in South China, which also brought new pelagic faunas northwards into some intra-shelf deeper water areas, such as the Shetianqiao area in central Hunan Province. Fifteen brachiopod species are described and illustrated, which include some taxa that are first recorded or recognized in South China, e.g., the spiriferid Pyramidaspirifer, which is now known from both North America and South China. One new species, Desquamatia qiziqiaoensis, is erected. |
| URI | http://hdl.handle.net/20.500.11897/311354 |
| ISSN | 0567-7920 |
| Indexed | SCI(E) |
| Appears in Collections: | 地球与空间科学学院 造山带与地壳演化教育部重点实验室 |
