Rapid and synchronous collapse of marine and terrestrial ecosystems during the end-Permian biotic crisis

@article{Twitchett2001RapidAS,
  title={Rapid and synchronous collapse of marine and terrestrial ecosystems during the end-Permian biotic crisis},
  author={Richard J. Twitchett and Cindy V. Looy and Richard J. Morante and Henk Visscher and Paul B. Wignall},
  journal={Geology},
  year={2001},
  volume={29},
  pages={351-354}
}
A newly studied Permian-Triassic (P-Tr) boundary section in Jameson Land, East Greenland, contains an abundant and well-preserved marine fauna as well as terrestrial palynomorphs. For the first time it is possible to compare the biotic crises of the marine and terrestrial realms using the same samples from the same section. The sediments record a negative excursion in δ 13 C carb values of 8‰–9‰, and in δ 13 C org values of 10‰–11‰. The presence of the conodont Hindeodus parvus, combined with… Expand
The terrestrial end-Permian mass extinction in South China
Abstract The end-Permian mass extinction reflects the most severe life crisis during the Phanerozoic and was associated with major global environmental changes. However, the consistency of the timeExpand
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TLDR
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TLDR
It is demonstrated that non-marine tetrapods were severely affected by the end-Permian mass extinction, and that these assemblages did not begin to recover until the Middle Triassic, consistent with the idea that unstable low-diversity post-extinction ecosystems were subject to boom–bust cycles. Expand
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Abstract The Permian-Triassic boundary marks the greatest mass extinction during the Phanerozoic, which was coupled with major global environmental changes, and is known especially fromExpand
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References

SHOWING 1-10 OF 19 REFERENCES
Permian-Triassic extinction: Organic δ13C evidence from British Columbia, Canada
The Permian-Triassic (P-T) extinction is documented geochemically in a marine sequence deposited in a basinal setting at Williston Lake, northeastern British Columbia, by using elemental and isotopicExpand
13C minima follow extinction events: A clue to faunal radiation
Changes in the carbon isotope composition of carbonate rocks at time-boundary zones show similar patterns in all three major boundaries: Precambrian/Cambrian, Permian/Triassic, andExpand
Palaeoenvironments and faunal recovery after the end-Permian mass extinction
Abstract Strata of the Lower Triassic Werfen Formation (Dolomites, northern Italy) record deposition in a wide range of palaeoenvironments from peritidal to outer ramp settings. This enables accurateExpand
The terminal Paleozoic fungal event: evidence of terrestrial ecosystem destabilization and collapse.
TLDR
This fungal event can be considered to reflect excessive dieback of arboreous vegetation, effecting destabilization and subsequent collapse of terrestrial ecosystems with concomitant loss of standing biomass. Expand
The delayed resurgence of equatorial forests after the permian-triassic ecologic crisis.
TLDR
The reconstructed pattern of vegetational change suggests that habitat restoration, migration, and evolutionary processes acted synergistically, setting the stage for successional replacement of lycopsid dominants by conifers within a period of approximately 0.5 million years. Expand
Evidence for abrupt latest Permian mass extinction of foraminifera: Results of tests for the Signor-Lipps effect
We used published biostratigraphic data on ranges of fusulinids and other foraminifera from Permian-Triassic boundary sections in the southern Alps, Italy, to test the effects of sampling and speciesExpand
The Great Paleozoic Crisis
Are you looking for an exciting book in Geology? Every textbook tells that nothing in Earth history has been more puzzling than that great wave of extinctions that swept the Earth round about 250Expand
Mass Extinctions and Their Aftermath
TLDR
In this text the demise of the dinosaurs is put into the proper context of other extinction events and all proposed extinction mechanisms - climate change, meteorite impact, volcanisms - are critically assessed. Expand
δ13C depth profiles from paleosols across the Permian-Triassic boundary: Evidence for methane release
Stable carbon isotopic analyses of organic carbon (δ 13 C) in individual paleosol profiles from Permian–Triassic sequences of Antarctica reveal systematic isotopic variations with profile depth.Expand
U/Pb zircon geochronology and tempo of the end-permian mass extinction
TLDR
Biostratigraphic controls from strata intercalated with ash beds below the boundary indicate that the Changhsingian pulse of the end-Permian extinction, corresponding to the disappearance of about 85 percent of marine species, lasted less than 1 million years. Expand
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