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

Richard J. Twitchett, Cindy V. Looy, Ric Morante, Henk Visscher and Paul B. Wignall
Rapid and synchronous collapse of marine and terrestrial ecosystems during the end-Permian biotic crisis
Geology (Boulder) (April 2001) 29 (4): 351-354

Abstract

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 delta (super 13) C (sub carb) values of 8 per mil-9 per mil, and in delta (super 13) C (sub org) values of 10 per mil-11 per mil. The presence of the conodont "Hindeodus parvus", combined with the delta (super 13) C (sub carb) record, enables correlation with the proposed global stratotype section at Meishan. This shows that the Greenland section is the most expanded P-Tr section known. Collapse of the marine and terrestrial ecosystems took between 10 and 60 k.y. It took a further few hundred thousand years for the final disappearance of Permian floral elements. Collapse of the terrestrial and marine ecosystems began at the same stratigraphic level and preceded the sharp negative excursion in the delta (super 13) C record.


ISSN: 0091-7613
EISSN: 1943-2682
Coden: GLGYBA
Serial Title: Geology (Boulder)
Serial Volume: 29
Serial Issue: 4
Title: Rapid and synchronous collapse of marine and terrestrial ecosystems during the end-Permian biotic crisis
Affiliation: University of Southern California, Department of Earth Sciences, Los Angeles, CA, United States
Pages: 351-354
Published: 200104
Text Language: English
Publisher: Geological Society of America (GSA), Boulder, CO, United States
References: 24
Accession Number: 2001-030997
Categories: Stratigraphy
Document Type: Serial
Bibliographic Level: Analytic
Annotation: With GSA Data Repository Item 2001038; Neth. Res. Sch. Sediment. Geol., Contrib. No. 20000806
Illustration Description: chart, strat. cols., sketch map
N72°00'00" - N72°45'00", W24°40'00" - W22°30'00"
Secondary Affiliation: University of Utrecht, NLD, NetherlandsCSIRO Institute of Minerals, Energy and Construction, AUS, AustraliaUniversity of Leeds, GBR, United Kingdom
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2018, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States
Update Code: 200110
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