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

  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},
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… 
The terrestrial end-Permian mass extinction in South China
Refined Permian–Triassic floristic timeline reveals early collapse and delayed recovery of south polar terrestrial ecosystems
The collapse of late Permian (Lopingian) Gondwanan floras, characterized by the extinction of glossopterid gymnosperms, heralded the end of one of the most enduring and extensive biomes in Earth’s
Salinity changes and anoxia resulting from enhanced run-off during the late Permian global warming and mass extinction event
Abstract. The late Permian biotic crisis had a major impact on marine and terrestrial environments. Rising CO2 levels following Siberian Trap volcanic activity were likely responsible for expanding
Ecosystem remodelling among vertebrates at the Permian–Triassic boundary in Russia
The nature of the event in Russia is document in a comprehensive survey of 675 specimens of amphibians and reptiles from 289 localities spanning 13 successive geological time zones in the South Urals basin, with a profound loss of genera and families and simplification of ecosystems.
Environmental crises at the Permian–Triassic mass extinction
The link between the Permian–Triassic mass extinction (252 million years ago) and the emplacement of the Siberian Traps Large Igneous Province (STLIP) was first proposed in the 1990s. However, the
Delayed recovery of non-marine tetrapods after the end-Permian mass extinction tracks global carbon cycle
  • R. Irmis, J. Whiteside
  • Environmental Science, Geography
    Proceedings of the Royal Society B: Biological Sciences
  • 2011
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.


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 isotopic
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, and
The terminal Paleozoic fungal event: evidence of terrestrial ecosystem destabilization and collapse.
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.
The delayed resurgence of equatorial forests after the permian-triassic ecologic crisis.
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.
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 species
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 250
Mass Extinctions and Their Aftermath
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.
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.
U/Pb zircon geochronology and tempo of the end-permian mass extinction
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.