Article
Biology
Alison T. Cribb, Kiersten K. Formoso, C. Henrik Woolley, James Beech, Shannon Brophy, Paul Byrne, Victoria C. Cassady, Amanda L. Godbold, Ekaterina Larina, Philip-peter Maxeiner, Yun-Hsin Wu, Frank A. Corsetti, David J. Bottjer
Summary: Research findings indicate that the end-Triassic mass extinction had a greater impact on terrestrial ecosystems than marine ecosystems, resulting in prolonged ecological flux in terrestrial biomes.
PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
(2023)
Article
Multidisciplinary Sciences
Jun Shen, Runsheng Yin, Thomas J. Algeo, Henrik H. Svensen, Shane D. Schoepfer
Summary: By analyzing a section in Japan, researchers have found that the isotopically light carbon released during the end-Triassic mass extinction may have come from the combustion of organic-rich sediments, rather than deep-Earth volcanic gases.
NATURE COMMUNICATIONS
(2022)
Article
Geosciences, Multidisciplinary
Andrew D. Bond, Alexander J. Dickson, Micha Ruhl, Remco Bos, Bas van de Schootbrugge
Summary: One of the most severe extinctions of marine life in history happened at the end of the Triassic period, possibly due to volcanic activity and the spread of anoxic conditions. The study uses molybdenum isotopes to reconstruct global and local marine oxygen levels during the extinction event. The findings suggest that the extinction was mainly restricted to marginal marine environments and highlights the vulnerability of global marine biodiversity to geographically localized anoxic conditions.
Article
Geochemistry & Geophysics
Ekaterina Larina, David J. Bottjer, Frank A. Corsetti, Alyson M. Thibodeau, William M. Berelson, A. Joshua West, Joyce A. Yager
Summary: The study reveals disruptions to shallow marine ecosystems and biogeochemical cycles before the end-Triassic mass extinction, potentially caused by episodic anoxic conditions. These disruptions led to reshaping of the marine ecosystems, ultimately resulting in the mass extinction event.
EARTH AND PLANETARY SCIENCE LETTERS
(2021)
Article
Geography, Physical
Tianchen He, Robert J. Newton, Paul B. Wignall, Stephen Reid, Jacopo Dal Corso, Satoshi Takahashi, Hepin Wu, Simona Todaro, Pietro Di Stefano, Vincenzo Randazzo, Manuel Rigo, Alexander M. Dunhill
Summary: During the end-Triassic mass extinction in the western Tethys, the shallow ocean experienced a significant decrease in oxygen levels, leading to oxygen-poor conditions for shallow-water organisms. Additionally, the expansion of deeper anoxic waters coincided with widespread anoxic deposition on continental shelves and slopes.
GLOBAL AND PLANETARY CHANGE
(2022)
Article
Geochemistry & Geophysics
C. P. Fox, J. H. Whiteside, P. E. Olsen, K. Grice
Summary: This study investigates the fossil record of key sections in the southwestern UK and finds that there was little evidence of large-scale wildfires during the end-Triassic mass extinction. Instead, the region was affected by acid rain and soil erosion. The study also reveals that the existing carbon isotope anomaly records do not accurately reflect the activity of Large Igneous Provinces (LIPs), but rather the increased input of terrestrial plant material. These findings suggest that multiple factors influenced the terrestrial phase of the end-Triassic mass extinction in the southwestern UK.
EARTH AND PLANETARY SCIENCE LETTERS
(2022)
Article
Geography, Physical
Calum P. Fox, Alex Holman, Manuel Rigo, Aisha Al Suwaidi, Kliti Grice
Summary: Polycyclic Aromatic Hydrocarbons (PAHs) are often used as proxies for wildfires in geological sediments. A study conducted in the Lombardy Basin in Italy found evidence of intense wildfire activity during a calcification crisis and a correlation between terrestrial and marine ecosystem stress.
GLOBAL AND PLANETARY CHANGE
(2022)
Article
Geography, Physical
Vivi Vajda, Stephen Mcloughlin, Sam M. Slater, Ola Gustafsson, Allan G. Rasmusson
Summary: The end-Triassic mass extinction resulted in the extinction of several seed-plant groups, with the peculiar pollen, Ricciisporites tuberculatus Lundblad, being dominant in the Northern Hemisphere prior to and during the extinction event. The parent plant of this pollen, Lepidopteris ottonis, produced R. tuberculatus, which is an abnormal form of its traditional pollen and disappeared during the extinction event. The production of aberrant R. tuberculatus was likely due to ecological pressure in stressed environments that favored asexual reproduction in peltasperms, and this led to the dominance of drought-tolerant plants in the Early Jurassic.
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
(2023)
Article
Geography, Physical
Sarah J. Beith, Calum P. Fox, John E. A. Marshall, Jessica H. Whiteside
Summary: The end-Triassic extinction (ETE) is associated with rapid atmospheric CO2-driven warming, anoxia in water columns, and H2S toxicity in the photic zone in the Western Tethys. This has hindered the swift recovery of ecosystems in several British basins. The need for a global characterization of redox changes across different extinction events is highlighted.
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
(2021)
Article
Geosciences, Multidisciplinary
Zhen Xu, Jason Hilton, Jianxin Yu, Paul B. Wignall, Hongfu Yin, Qing Xue, Weiju Ran, Hui Li, Jun Shen, Fansong Meng
Summary: This study reviews the changes in plant species richness and abundance in South China from the End Permian to Middle Triassic, and examines the co-evolutionary relationship between plants and the environment during this critical period. The study identified four phases of plant evolution, with the End Permian Plant Crisis being a significant event that marked a decline in species richness and plant abundance.
EARTH-SCIENCE REVIEWS
(2022)
Article
Geochemistry & Geophysics
Kunio Kaiho, Daisuke Tanaka, Sylvain Richoz, David S. Jones, Ryosuke Saito, Daichi Kameyama, Masayuki Ikeda, Satoshi Takahashi, Md. Aftabuzzaman, Megumu Fujibayashi
Summary: The study suggests that the Central Atlantic Magmatic Province may have triggered global environmental changes and the end-Triassic mass extinction through massive gas emissions, with low-temperature heating potentially leading to SO2-dominated gas emission and global cooling that precipitated the mass extinction.
EARTH AND PLANETARY SCIENCE LETTERS
(2022)
Article
Geosciences, Multidisciplinary
Simona Todaro, Manuel Rigo, Pietro Di Stefano, Alessandro Aiuppa, Massimo Chiaradia
Summary: The study of the Triassic/Jurassic boundary section at Mt Sparagio in Sicily revealed that the environmental disturbances caused by the Central Atlantic Magmatic Province (CAMP) activity led to acidification and a decrease in biodiversity. In addition, the oxygen isotope curve indicated a significant warming trend.
FRONTIERS IN EARTH SCIENCE
(2022)
Article
Biology
Pulkit Singh, Wanyi Lu, Zunli Lu, Adam B. Jost, Kimberly Lau, Aviv Bachan, Bas van de Schootbrugge, Jonathan L. Payne
Summary: The end-Triassic biodiversity crisis had a significant impact on animal life, causing mass extinction and reducing the carrying capacity for skeletal organisms in early Hettangian ecosystems. The study found a close relationship between oceanic oxygen levels and skeletal organism abundance.
Article
Geography, Physical
Tianchen He, Paul B. Wignall, Robert J. Newton, Jed W. Atkinson, Jacob F. J. Keeling, Yijun Xiong, Simon W. Poulton
Summary: This study investigates the occurrence of marine anoxia in the Bristol Channel Basin and Larne Basin during the Triassic-Jurassic transition. The results show frequent development of anoxic-ferruginous conditions and ephemeral euxinic episodes in the Bristol Channel Basin, while the Larne Basin remained oxygenated. The second phase of the end-Triassic mass extinction coincided with persistent euxinic conditions in both basins. Post-extinction, anoxia persisted but did not extend into the shallowest areas where benthic marine ecosystem recovery was occurring.
GLOBAL AND PLANETARY CHANGE
(2022)
Article
Geography, Physical
Jing Li, Huyue Song, Li Tian, David P. G. Bond, Haijun Song, Yong Du, Chi Zhang, Daoliang Chu, Paul B. Wignall, Jinnan Tong
Summary: By studying the Kuhjoch section in Austria and the St. Audrie's Bay section in England, we can better evaluate the role of marine anoxia in the end-Triassic mass extinction. The results suggest that marine anoxia played an important role in the extinction event.
GLOBAL AND PLANETARY CHANGE
(2022)