Ostracodal evolution during the Permian–Triassic transition at the Youping section of the Nanpanjiang Basin
The Permian–Triassic mass extinction has been considered the largest bio-crisis of the Phanerozoic, with more than 90% of marine species extinct. Previous studies showed that ostracods suffered various extinction patterns in different localities and were relatively enriched in the lowermost Triassic...
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Frontiers Media S.A.
2023-03-01
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| Series: | Frontiers in Ecology and Evolution |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fevo.2023.1147335/full |
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| author | Xia Ji Yunfei Huang Xin Sun Xincheng Qiu Hao Yang Jinnan Tong Xuefei Yi Li Tian |
| author_facet | Xia Ji Yunfei Huang Xin Sun Xincheng Qiu Hao Yang Jinnan Tong Xuefei Yi Li Tian |
| author_sort | Xia Ji |
| collection | DOAJ |
| description | The Permian–Triassic mass extinction has been considered the largest bio-crisis of the Phanerozoic, with more than 90% of marine species extinct. Previous studies showed that ostracods suffered various extinction patterns in different localities and were relatively enriched in the lowermost Triassic shallow marine microbialites. Multiple hypotheses have been put forward to explore the reasons for this phenomenon. Abundant ostracod fossils were collected from the microbialite-bearing Youping section in the Nanpanjiang Basin. 45 species in 22 genera from Wujiaping Formation increased dramatically to 104 species in 33 genera from the microbialites of basal Luolou Formation. However, Ostracods from the Youping section suffered severe extinction during the second phase of the Permian–Triassic crisis, i.e., the earliest Triassic mass extinction (ETME), rather than the first phase, i.e., the latest Permian mass extinction (LPEM). In addition, the Sørenson coefficient has been used to examine the similarity of faunal associations among different sections of the Permian–Triassic transitional beds. There was no significant differences for ostracods between microbialites and non-microbialites sections based on similarity analysis. Thus, we proposed that “Shallow marine refuge” hypothesis could explain the high diversity and high abundance of ostracods of the Permian–Triassic transitional beds. Besides, ostracods showed remarkable geographical differentiation at both regional and global scales during the Permian–Triassic transitional beds and were presumably controlled by geographical isolation. |
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| issn | 2296-701X |
| language | English |
| last_indexed | 2024-04-10T00:42:39Z |
| publishDate | 2023-03-01 |
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| series | Frontiers in Ecology and Evolution |
| spelling | doaj.art-363ad110410c4b58b28fe277ce8cc8d32023-03-14T05:06:29ZengFrontiers Media S.A.Frontiers in Ecology and Evolution2296-701X2023-03-011110.3389/fevo.2023.11473351147335Ostracodal evolution during the Permian–Triassic transition at the Youping section of the Nanpanjiang BasinXia Ji0Yunfei Huang1Xin Sun2Xincheng Qiu3Hao Yang4Jinnan Tong5Xuefei Yi6Li Tian7School of Geosciences, Yangtze University, Wuhan, ChinaSchool of Geosciences, Yangtze University, Wuhan, ChinaState Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan, ChinaState Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan, ChinaState Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan, ChinaState Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan, ChinaSchool of Geosciences, Yangtze University, Wuhan, ChinaState Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan, ChinaThe Permian–Triassic mass extinction has been considered the largest bio-crisis of the Phanerozoic, with more than 90% of marine species extinct. Previous studies showed that ostracods suffered various extinction patterns in different localities and were relatively enriched in the lowermost Triassic shallow marine microbialites. Multiple hypotheses have been put forward to explore the reasons for this phenomenon. Abundant ostracod fossils were collected from the microbialite-bearing Youping section in the Nanpanjiang Basin. 45 species in 22 genera from Wujiaping Formation increased dramatically to 104 species in 33 genera from the microbialites of basal Luolou Formation. However, Ostracods from the Youping section suffered severe extinction during the second phase of the Permian–Triassic crisis, i.e., the earliest Triassic mass extinction (ETME), rather than the first phase, i.e., the latest Permian mass extinction (LPEM). In addition, the Sørenson coefficient has been used to examine the similarity of faunal associations among different sections of the Permian–Triassic transitional beds. There was no significant differences for ostracods between microbialites and non-microbialites sections based on similarity analysis. Thus, we proposed that “Shallow marine refuge” hypothesis could explain the high diversity and high abundance of ostracods of the Permian–Triassic transitional beds. Besides, ostracods showed remarkable geographical differentiation at both regional and global scales during the Permian–Triassic transitional beds and were presumably controlled by geographical isolation.https://www.frontiersin.org/articles/10.3389/fevo.2023.1147335/fullPermian–Triassic mass extinctionmicrobialitesostracodSouth Chinafaunal similarity |
| spellingShingle | Xia Ji Yunfei Huang Xin Sun Xincheng Qiu Hao Yang Jinnan Tong Xuefei Yi Li Tian Ostracodal evolution during the Permian–Triassic transition at the Youping section of the Nanpanjiang Basin Frontiers in Ecology and Evolution Permian–Triassic mass extinction microbialites ostracod South China faunal similarity |
| title | Ostracodal evolution during the Permian–Triassic transition at the Youping section of the Nanpanjiang Basin |
| title_full | Ostracodal evolution during the Permian–Triassic transition at the Youping section of the Nanpanjiang Basin |
| title_fullStr | Ostracodal evolution during the Permian–Triassic transition at the Youping section of the Nanpanjiang Basin |
| title_full_unstemmed | Ostracodal evolution during the Permian–Triassic transition at the Youping section of the Nanpanjiang Basin |
| title_short | Ostracodal evolution during the Permian–Triassic transition at the Youping section of the Nanpanjiang Basin |
| title_sort | ostracodal evolution during the permian triassic transition at the youping section of the nanpanjiang basin |
| topic | Permian–Triassic mass extinction microbialites ostracod South China faunal similarity |
| url | https://www.frontiersin.org/articles/10.3389/fevo.2023.1147335/full |
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