Journal Title

Journal of Geology

Publication Date

1986

Abstract

Mammal-bearing lacustrine and tuffaceous sediments from three localities of the Santa Cruz Formation, type fauna of the Santacrucian Land Mammal Age, in Patagonia, southern Argentina, are calibrated by radioisotope dating with the aid of magnetostratigraphy. The strata range from about 17.6 Ma to perhaps 16.0 Ma, and are thus of late-early Miocene age. The Santacrucian Land Mammal Age ranges from about 18.0 Ma to about 15.0 Ma.

Subjects

Geological time; Paleomagnetism; Patagonia (Argentina and Chile)

Publication Information

© 1986, University of Chicago Press. View original published article at 10.1086/629050.

DOI

10.1086/629050

Peer-Reviewed

true

Document Type

Journal Article

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