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Middle Pleistocene climate change recorded in fossil mammal teeth from Tarija, Bolivia, and upper limit of the Ensenadan land-mammal age

Auteur :
MACFADDEN, B.J.

Description :
Fossiliferous middle Pleistocene sediments of the Tarija basin of southern Bolivia contain a classic Ensenandan land-mammal fauna. New carbon isotopic data reported here for 5 specimens of the grazing mammals Equus (horse) and Cuvieronius (mastodon), documented from 8 stratigraphic levels at Tarija, vary significantly in the C 13 values of their teeth. These new isotopic data are used here to identify warm-cold paleoclimatic cycles during the middle Pleistocene and clarify the upper limit for the Ensenadan land-mammal age.


Type de document :
Article de périodique

Source :
Quaternary research, issn : 0033-5894, 2000, vol. 54, n°. 1, p. 121-131, Collation : Illustration, Références bibliographiques : 36 ref.

Date :
2000

Editeur :
Pays édition : Etats-Unis, San Diego, CA, Elsevier

Langue :
Anglais
Droits :
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