Geochronology of Type Santacrucian (Middle Tertiary) Land Mammal Age, Patagonia, Argentina
- 30 June 1986
- journal article
- research article
- Published by University of Chicago Press in The Journal of Geology
- Vol. 94 (4), 449-457
- https://doi.org/10.1086/629050
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.Keywords
This publication has 3 references indexed in Scilit:
- Vertebrate paleontology, geology, and geochronology of the Tapera de López and Scarritt Pocket, Chubut Province, ArgentinaJournal of Paleontology, 1986
- Geochronology and Land-Mammal Biochronology of the Transamerican Faunal InterchangePublished by Springer Nature ,1985
- South American Geochronology: Radiometric Time Scale for Middle to Late Tertiary Mammal-Bearing Horizons in PatagoniaScience, 1977