First accelerator mass spectrometry (super 14) C dates documenting contemporaneity of nonanalog species in late Pleistocene mammal communities

Thomas W. Stafford; Holmes A. Semken; Russell W. Graham; Walter F. Klippel; Anastasia Markova; Nikolai G. Smirnov; John Southon

doi:10.1130/0091-7613(1999)027<0903:FAMSCD>2.3.CO;2

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First accelerator mass spectrometry (super 14) C dates documenting contemporaneity of nonanalog species in late Pleistocene mammal communities

Journal article

Peer reviewed

First accelerator mass spectrometry (super 14) C dates documenting contemporaneity of nonanalog species in late Pleistocene mammal communities

Thomas W. Stafford, Holmes A. Semken, Russell W. Graham, Walter F. Klippel, Anastasia Markova, Nikolai G. Smirnov and John Southon

Geology (Boulder), Vol.27(10), pp.903-906

10/01/1999

DOI: 10.1130/0091-7613(1999)027<0903:FAMSCD>2.3.CO;2

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Abstract

Worldwide late Pleistocene terrestrial mammal faunas are characterized by stratigraphic associations of species that now have exclusive geographic ranges. These have been interpreted as either taphonomically mixed or representative of communities that no longer exist. Accelerator mass spectrometry (super 14) C dates (n = 60) on single bones of stratigraphically associated fossil micromammals from two American and two Russian sites document for the first time that currently allopatric mammals occurred together between 12,000 and 22,000 yr B.P. on two continents. The existence of mammal communities without modern analogs demonstrates that Northern Hemisphere biological communities are ephemeral and that many modern biomes are younger than 12 ka. Future climate change may result in new nonanalog communities.

absolute age

accelerator mass spectroscopy

applications

Arkansas

Asia

biomes

bones

C-14

carbon

cave environment

Cenozoic

Chordata

climate change

Commonwealth of Independent States

communities

correlation

dates

Eurasia

Europe

Eutheria

faunal list

Geochronology

isotopes

Mammalia

mass spectroscopy

methods

micromammals

North America

Northern Hemisphere

paleoclimatology

paleoecology

Pleistocene

Quaternary

Quaternary geology

radioactive isotopes

Rodentia

Russian Federation

Russian Plain

Siberia

spectroscopy

Sverdlovsk Russian Federation

Tennessee

terrestrial environment

Tetrapoda

Theria

United States

upper Pleistocene

Urals

Vertebrata

Yekaterinburg Russian Federation

Details

Title: Subtitle: First accelerator mass spectrometry (super 14) C dates documenting contemporaneity of nonanalog species in late Pleistocene mammal communities
Creators: Thomas W. Stafford - Institute of Arctic and Alpine Research
Holmes A. Semken - University of Iowa
Russell W. Graham - Denver Museum of Nature and Science
Walter F. Klippel - University of Tennessee at Knoxville
Anastasia Markova
Nikolai G. Smirnov
John Southon - Lawrence Livermore National Laboratory
Resource Type: Journal article
Publication Details: Geology (Boulder), Vol.27(10), pp.903-906
Publisher: Geological Society of America (GSA)
DOI: 10.1130/0091-7613(1999)027<0903:FAMSCD>2.3.CO;2
ISSN: 0091-7613
eISSN: 1943-2682
Language: English
Date published: 10/01/1999
Academic Unit: Earth and Environmental Sciences
Record Identifier: 9984516160002771

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