Geochronology and timescales in the evolution of mammalian tooth shape: the Paleogene of Patagonia

The South American fossil record provides a unique and rich record of the evolution of mammalian tooth shape, especially structural features that serve to resist abrasive wear. For the evolution of mammalian tooth shape, our understanding of geochronology points increasingly to a convergence between...

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Autores principales: Madden, R. H., Dunn, R. E., Kohn, M. J., Strömberg, C. A. E., Carlini, Alfredo Armando
Formato: Objeto de conferencia Resumen
Lenguaje:Inglés
Publicado: 2010
Materias:
Ciencias Naturales
Paleontología
Evolución
Mamíferos
Fósiles
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/16637
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
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spelling I19-R120-10915-166372023-09-26T20:02:32Z http://sedici.unlp.edu.ar/handle/10915/16637 Geochronology and timescales in the evolution of mammalian tooth shape: the Paleogene of Patagonia Madden, R. H. Dunn, R. E. Kohn, M. J. Strömberg, C. A. E. Carlini, Alfredo Armando 2010 2010 2010-11-09T03:00:00Z en Ciencias Naturales Paleontología Evolución Mamíferos Fósiles The South American fossil record provides a unique and rich record of the evolution of mammalian tooth shape, especially structural features that serve to resist abrasive wear. For the evolution of mammalian tooth shape, our understanding of geochronology points increasingly to a convergence between rates of morphological change and the intensity of earth surface processes (climate-driven erosion of pyroclastic sediment accumulations). Using single zircon U-Pb methods to construct high-precision age models for fossil-bearing strata of the Sarmiento Formation, we gain increasing confidence in the remanent magnetic polarity stratigraphy and the measurement of linear sedimentation rates. Simposio II: El Paleógeno de América del Sur y Central Facultad de Ciencias Naturales y Museo Objeto de conferencia Resumen http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Naturales
Paleontología
Evolución
Mamíferos
Fósiles
spellingShingle Ciencias Naturales
Paleontología
Evolución
Mamíferos
Fósiles
Madden, R. H.
Dunn, R. E.
Kohn, M. J.
Strömberg, C. A. E.
Carlini, Alfredo Armando
Geochronology and timescales in the evolution of mammalian tooth shape: the Paleogene of Patagonia
topic_facet Ciencias Naturales
Paleontología
Evolución
Mamíferos
Fósiles
description The South American fossil record provides a unique and rich record of the evolution of mammalian tooth shape, especially structural features that serve to resist abrasive wear. For the evolution of mammalian tooth shape, our understanding of geochronology points increasingly to a convergence between rates of morphological change and the intensity of earth surface processes (climate-driven erosion of pyroclastic sediment accumulations). Using single zircon U-Pb methods to construct high-precision age models for fossil-bearing strata of the Sarmiento Formation, we gain increasing confidence in the remanent magnetic polarity stratigraphy and the measurement of linear sedimentation rates.
format Objeto de conferencia
Resumen
author Madden, R. H.
Dunn, R. E.
Kohn, M. J.
Strömberg, C. A. E.
Carlini, Alfredo Armando
author_facet Madden, R. H.
Dunn, R. E.
Kohn, M. J.
Strömberg, C. A. E.
Carlini, Alfredo Armando
author_sort Madden, R. H.
title Geochronology and timescales in the evolution of mammalian tooth shape: the Paleogene of Patagonia
title_short Geochronology and timescales in the evolution of mammalian tooth shape: the Paleogene of Patagonia
title_full Geochronology and timescales in the evolution of mammalian tooth shape: the Paleogene of Patagonia
title_fullStr Geochronology and timescales in the evolution of mammalian tooth shape: the Paleogene of Patagonia
title_full_unstemmed Geochronology and timescales in the evolution of mammalian tooth shape: the Paleogene of Patagonia
title_sort geochronology and timescales in the evolution of mammalian tooth shape: the paleogene of patagonia
publishDate 2010
url http://sedici.unlp.edu.ar/handle/10915/16637
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