... remarkably well with what Paul Wignall and I envisage for the biggest mass extinction event of all, at the Permian-Triassic boundary (Hallam & Wignall 1997). While the most fully documented extinctions were in the marine realm it is evident that there were also extensive extinctions on land, which...

...LUKE E. FAGGETTER; PAUL B. WIGNALL; SARA B. PRUSS; YADONG SUN; ROBERT J. RAINE; ROBERT J. NEWTON; MIKE WIDDOWSON; MICHAEL M. JOACHIMSKI; PAUL M. SMITH Abstract Globally, the Series 2 – Series 3 boundary of the Cambrian System coincides with a major carbon isotope excursion, sea-level changes...

...Daoliang Chu; Haijun Song; Jacopo Dal Corso; A.M.E. Winguth; Mitali D. Gautam; Paul B. Wignall; Stephen E. Grasby; Wenchao Shu; Hanchen Song; Huyue Song; Li Tian; Yuyang Wu; Jinnan Tong Abstract Climate breakdown driven by massive volcanic eruptions was the likely cause of the terrestrial Permian...

...Paul B. Wignall; John-Paul Zonneveld; Mark A. Sephton *E-mail: wignall@earth.leeds.ac.uk . © 2003 Geological Society of America 2003 Attribution: You must attribute the work in the manner specified by the author or licensor ( but no in any way that suggests that they endorse you or your...

...Mark A. Sephton; Ken Amor; Ian A. Franchi; Paul B. Wignall; Robert Newton; John-Paul Zonneveld Abstract Major perturbations of organic carbon and nitrogen isotope ratios from a Norian-Rhaetian (Late Triassic) boundary section in British Columbia coincide with an extinction of the dominant, deep...

...Alejandra Sánchez-Roda; Paul B. Wignall; Yijun Xiong; Simon W. Poulton The cause of the Late Ordovician mass extinction (LOME) is widely debated, with glaciation, volcanism and oceanic redox fluctuations being proposed as possible drivers. Here, we apply a multi-proxy approach to deep-water Iapetus...

...Yuxuan Wang; Paul B. Wignall; Yijun Xiong; David K. Loydell; Jeffrey Peakall; Jaco H. Baas; Benjamin J. W. Mills; Simon W. Poulton Abstract The early Silurian Llandovery–Wenlock boundary interval is marked by significant marine perturbations and biotic turnover, culminating in the Ireviken...

...Stephen E. Grasby; Omid H. Ardakani; Xiaojun Liu; David P.G. Bond; Paul B. Wignall; Lorna J. Strachan Abstract The Permian–Triassic mass extinction (PTME) interval is marked by major excursions in both inorganic and organic carbon (C) isotopes. Carbon cycle models predict that these trends were...

...Bethany J. Allen; Matthew E. Clapham; Erin E. Saupe; Paul B. Wignall; Daniel J. Hill; Alexander M. Dunhill Abstract Understanding spatial variation in origination and extinction can help to unravel the mechanisms underlying macroevolutionary patterns. Although methods have been developed...

...Sen Li; Paul B. Wignall; Yijun Xiong; Simon W. Poulton Abstract Depositional models for black shale formation rely on a detailed understanding of redox conditions and how they relate to basin development. Here, we calibrate multiple redox proxies (Fe speciation, U and Mo systematics, and pyrite...

...Wenchao Shu; Jinnan Tong; Jianxin Yu; Jason Hilton; Michael J. Benton; Xiao Shi; José B. Diez; Paul B. Wignall; Daoliang Chu; Li Tian; Zhixing Yi; Yongdong Mao Abstract The global pattern of plant evolution through the Permian–Triassic mass extinction is uncertain, and the extent to which land...

...Kaixuan Ji; Paul B. Wignall; Jinnan Tong; Yingyue Yu; Wenwei Guo; Wenchao Shu; Daoliang Chu Abstract In terrestrial settings, the Permo-Triassic mass extinction is commonly linked to major changes in sedimentological and climatic conditions that include a switch from meandering to braided fluvial...

...Baojin Wu; Genming Luo; Michael M. Joachimski; Paul B. Wignall; Lidan Lei; Junhua Huang; Xulong Lai Abstract The largest mass extinction since the advent of animals occurred during the Permian-Triassic (P-Tr) transition, ca. 252 Ma, and is commonly attributed to the eruption of the Siberian Traps...

...Mingtao Li; Paul B. Wignall; Xu Dai; Mingyi Hu; Haijun Song Forum Reply httpsdoi.org/10.1130/G49456Y.1 Phanerozoic variation in dolomite abundance linked to oceanic anoxia Mingtao Li1,2, Paul B. Wignall3, Xu Dai2, Mingyi Hu1, and Haijun Song2* 1School of Geosciences, Yangtze University, Wuhan...

...Mingtao Li; Paul B. Wignall; Xu Dai; Mingyi Hu; Haijun Song Abstract The abundance of dolomitic strata in the geological record contrasts with the general rarity of locations where dolomite forms today, a discrepancy that has long posed a problem for their interpretation. Recent culture experiments...

...Daoliang Chu; Jacopo Dal Corso; Wenchao Shu; Haijun Song; Paul B. Wignall; Stephen E. Grasby; Bas van de Schootbrugge; Keqing Zong; Yuyang Wu; Jinnan Tong Abstract Teratological spores and pollen are widespread in sediments that record the Permian-Triassic mass extinction. The malformations...

...Daoliang Chu; Stephen E. Grasby; Haijun Song; Jacopo Dal Corso; Yao Wang; Tamsin A. Mather; Yuyang Wu; Huyue Song; Wenchao Shu; Jinnan Tong; Paul B. Wignall Abstract The Permian-Triassic mass extinction is widely attributed to the global environmental changes caused by the eruption of the Siberian...

...Martin Schobben; Bas van de Schootbrugge; Paul B. Wignall Mass extinctions are global-scale environmental crises marked by the loss of numerous species from all habitats. They often coincide with rapid changes in the stable carbon isotope ratios ( 13 C/ 12 C) recorded in sedimentary carbonate...

...Stephen E. Grasby; Jochen Knies; Benoit Beauchamp; David P.G. Bond; Paul Wignall; Yadong Sun Abstract The largest extinction in Earth history, in the latest Permian, was followed throughout most of the Early Triassic by a prolonged period of ecologic recovery. What factors delayed biotic recovery...