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Cubierta del libro
Autor Martínez, Sergio. author.

Título Biogeography of the Quaternary Molluscs of the Southwestern Atlantic Ocean [electronic resource] / by Sergio Martínez, Claudia J. del Río, Alejandra Rojas.

Publicación Dordrecht : Springer Netherlands : Imprint: Springer, 2013.
Descripción física IX, 36 p. 16 illus., 3 illus. in color. online resource.
text txt rdacontent
computer c rdamedia
online resource cr rdacarrier
text file PDF rda
Colección SpringerBriefs in Earth System Sciences, 2191-589X
SpringerBriefs in Earth System Sciences, 2191-589X
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Springer eBooks. Earth and Environmental Science
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Contiene: Introduction -- Present oceanographic conditions -- Present biogeographical units -- Neogene roots -- Quaternary mollusks -- -Outline and Methods -- -Previous studies -- -Species distribution -- Faunal boundaries during the Quaternary -- Final remarks.
Resumen: The Quaternary comprises a brief time in the Earth́鳠history, and apart from a few exceptions, molluscan assemblages recovered from exposures along the coast of Southwestern South America (Southern Brazil, Uruguay, Argentina) are essentially the same than those that inhabit the region today, leading to the assumption that no important change in the distribution of the faunas since Pleistocene times has occurred. However, the good taxonomic and temporal resolution reached in the last years, allowed us to detect some biogeographic changes, although traditional biogeographic units remain the same (i.e. Magellanic and Argentinean Provinces). These modifications involve mainly variations in the taxonomic composition of the assemblages and in the southern boundaries of some species distributions (extralimital species), today retracted northwards. These changes are related to southward shifts of the warm waters of the Brazilian Current, correlated with global warm peaks. This phenomenon was more intense in the Late Pleistocene (MIS 5e) and in the Holocene between ca. 6500-3500 14C yr.
Materia Earth sciences.
Animal anatomy.
Earth Sciences.
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Animal Systematics/Taxonomy/Biogeography.
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Animal Anatomy / Morphology / Histology.
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Autor secundario del Río, Claudia J. author.
Rojas, Alejandra. author.
SpringerLink (Online service)
En Springer eBooks
OTRO SOPORTE Printed edition: 9789400760547
ISBN 9789400760554 978-94-007-6055-4
ISBN/ISSN 10.1007/978-94-007-6055-4 doi