Calibration of the Beginning of the Age of Mammals in Patagonia
- 3 April 1981
- journal article
- research article
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 212 (4490) , 43-45
- https://doi.org/10.1126/science.212.4490.43
Abstract
Beds of the Rio Chico Formation containing the earliest known land mammals in Patagonia, southern Argentina, were calibrated by potassium-argon age determinations and paleomagnetic polarity data. The Riochican land mammal age encompasses the middle and late Paleocene and corresponds in time with Torrejonian and Tiffanian land mammal faunas in North America.This publication has 7 references indexed in Scilit:
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