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The terrestrial end-Permian mass extinction in the paleotropics postdates the marine extinction.
Wu, Qiong; Zhang, Hua; Ramezani, Jahandar; Zhang, Fei-Fei; Erwin, Douglas H; Feng, Zhuo; Shao, Long-Yi; Cai, Yao-Feng; Zhang, Shu-Han; Xu, Yi-Gang; Shen, Shu-Zhong.
Afiliação
  • Wu Q; Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou 511458, China.
  • Zhang H; State Key Laboratory for Mineral Deposits Research and School of Earth Sciences and Engineering, Nanjing University, Nanjing 210023, China.
  • Ramezani J; LPS, Nanjing Institute of Geology and Palaeontology and Center for Excellence in Life and Paleoenvironment, Chinese Academy of Sciences, Nanjing 210008, China.
  • Zhang FF; Department of Earth, Atmospheric, and Planetary Sciences, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.
  • Erwin DH; State Key Laboratory for Mineral Deposits Research and School of Earth Sciences and Engineering, Nanjing University, Nanjing 210023, China.
  • Feng Z; Department of Paleobiology, MRC-121, National Museum of Natural History, Washington, DC 20013-7012, USA.
  • Shao LY; Santa Fe Institute, 1399 Hyde Park Road, Santa Fe, NM 87501, USA.
  • Cai YF; Institute of Palaeontology, Yunnan Key Laboratory of Earth System Science, Yunnan Key Laboratory for Palaeobiology, MEC International Joint Laboratory for Palaeobiology and Palaeoenvironment, Yunnan University, Kunming 650500, China.
  • Zhang SH; Southwest United Graduate School, Kunming 650092, China.
  • Xu YG; State Key Laboratory of Coal Resources and Safe Mining and College of Geoscience and Surveying Engineering, China University of Mining and Technology (Beijing), Beijing 100083, China.
  • Shen SZ; LPS, Nanjing Institute of Geology and Palaeontology and Center for Excellence in Life and Paleoenvironment, Chinese Academy of Sciences, Nanjing 210008, China.
Sci Adv ; 10(5): eadi7284, 2024 Feb 02.
Article em En | MEDLINE | ID: mdl-38295161
ABSTRACT
The end-Permian mass extinction was the most severe ecological event during the Phanerozoic and has long been presumed contemporaneous across terrestrial and marine realms with global environmental deterioration triggered by the Siberian Traps Large Igneous Province. We present high-precision zircon U-Pb geochronology by the chemical abrasion-isotope dilution-thermal ionization mass spectrometry technique on tuffs from terrestrial to transitional coastal settings in Southwest China, which reveals a protracted collapse of the Cathaysian rainforest beginning after the onset of the end-Permian marine extinction. Integrated with high-resolution geochronology from coeval successions, our results suggest that the terrestrial extinction occurred diachronously with latitude, beginning at high latitudes during the late Changhsingian and progressing to the tropics by the early Induan, spanning a duration of nearly 1 million years. This latitudinal age gradient may have been related to variations in surface warming with more degraded environmental conditions at higher latitudes contributing to higher extinction rates.

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Ano de publicação: 2024 Tipo de documento: Article

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Ano de publicação: 2024 Tipo de documento: Article