QUATERNARY MARINE MOLLUSKS IN TIERRA DEL FUEGO: INSIGHTS FROM INTEGRATED TAPHONOMIC AND PALEOECOLOGIC ANALYSIS OF SHELL ASSEMBLAGES IN RAISED DEPOSITS

During the Quaternary the southern tip of South America was affected by several glaciations which might have excluded much of the benthic marine fauna inhabiting this region, with the consequent in-terruption of the connection between the Atlantic and the Pacific Oceans. In that context, fossil mari...

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Detalles Bibliográficos
Autor principal:	Gordillo,Sandra
Lenguaje:	English
Publicado:	Universidad de Magallanes 2009
Materias:	mollusks taphonomy paleoecology Quaternary Tierra del Fuego
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-686X2009000200001
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spelling	oai:scielo:S0718-686X20090002000012018-09-05QUATERNARY MARINE MOLLUSKS IN TIERRA DEL FUEGO: INSIGHTS FROM INTEGRATED TAPHONOMIC AND PALEOECOLOGIC ANALYSIS OF SHELL ASSEMBLAGES IN RAISED DEPOSITSGordillo,Sandra mollusks taphonomy paleoecology Quaternary Tierra del Fuego During the Quaternary the southern tip of South America was affected by several glaciations which might have excluded much of the benthic marine fauna inhabiting this region, with the consequent in-terruption of the connection between the Atlantic and the Pacific Oceans. In that context, fossil marine mollusks recovered from interglacial (Pleistocene) and postglacial (Holocene) Quaternary deposits of Tierra del Fuego, provide a key for the reconstruction of paleocommunities and the evaluation of changes in faunal composition over time. Paleontological database was compiled from previous works, showing a diverse fauna, which includes 91 different species (61.5% gastropods; 31.9% bivalves and 6.6% chitons). Quaternary time-averaged mollusk assemblages from Tierra del Fuego give a very good picture of the overall coastal benthic biodiversity patterns in the region. The composition of mollusk species showed remarkable similarities with present- day fauna, which reinforces the hypothesis that climatic conditions have maintained without significant changes since at least the Middle Pleistocene. However, taphonomic and paleoecological analysis of shell assemblages shows the existence of different shallow benthic com-munities, which represent spatial and temporal variations among regions and sites.info:eu-repo/semantics/openAccessUniversidad de MagallanesAnales del Instituto de la Patagonia v.37 n.2 20092009-01-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-686X2009000200001en10.4067/S0718-686X2009000200001
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	mollusks taphonomy paleoecology Quaternary Tierra del Fuego
spellingShingle	mollusks taphonomy paleoecology Quaternary Tierra del Fuego Gordillo,Sandra QUATERNARY MARINE MOLLUSKS IN TIERRA DEL FUEGO: INSIGHTS FROM INTEGRATED TAPHONOMIC AND PALEOECOLOGIC ANALYSIS OF SHELL ASSEMBLAGES IN RAISED DEPOSITS
description	During the Quaternary the southern tip of South America was affected by several glaciations which might have excluded much of the benthic marine fauna inhabiting this region, with the consequent in-terruption of the connection between the Atlantic and the Pacific Oceans. In that context, fossil marine mollusks recovered from interglacial (Pleistocene) and postglacial (Holocene) Quaternary deposits of Tierra del Fuego, provide a key for the reconstruction of paleocommunities and the evaluation of changes in faunal composition over time. Paleontological database was compiled from previous works, showing a diverse fauna, which includes 91 different species (61.5% gastropods; 31.9% bivalves and 6.6% chitons). Quaternary time-averaged mollusk assemblages from Tierra del Fuego give a very good picture of the overall coastal benthic biodiversity patterns in the region. The composition of mollusk species showed remarkable similarities with present- day fauna, which reinforces the hypothesis that climatic conditions have maintained without significant changes since at least the Middle Pleistocene. However, taphonomic and paleoecological analysis of shell assemblages shows the existence of different shallow benthic com-munities, which represent spatial and temporal variations among regions and sites.
author	Gordillo,Sandra
author_facet	Gordillo,Sandra
author_sort	Gordillo,Sandra
title	QUATERNARY MARINE MOLLUSKS IN TIERRA DEL FUEGO: INSIGHTS FROM INTEGRATED TAPHONOMIC AND PALEOECOLOGIC ANALYSIS OF SHELL ASSEMBLAGES IN RAISED DEPOSITS
title_short	QUATERNARY MARINE MOLLUSKS IN TIERRA DEL FUEGO: INSIGHTS FROM INTEGRATED TAPHONOMIC AND PALEOECOLOGIC ANALYSIS OF SHELL ASSEMBLAGES IN RAISED DEPOSITS
title_full	QUATERNARY MARINE MOLLUSKS IN TIERRA DEL FUEGO: INSIGHTS FROM INTEGRATED TAPHONOMIC AND PALEOECOLOGIC ANALYSIS OF SHELL ASSEMBLAGES IN RAISED DEPOSITS
title_fullStr	QUATERNARY MARINE MOLLUSKS IN TIERRA DEL FUEGO: INSIGHTS FROM INTEGRATED TAPHONOMIC AND PALEOECOLOGIC ANALYSIS OF SHELL ASSEMBLAGES IN RAISED DEPOSITS
title_full_unstemmed	QUATERNARY MARINE MOLLUSKS IN TIERRA DEL FUEGO: INSIGHTS FROM INTEGRATED TAPHONOMIC AND PALEOECOLOGIC ANALYSIS OF SHELL ASSEMBLAGES IN RAISED DEPOSITS
title_sort	quaternary marine mollusks in tierra del fuego: insights from integrated taphonomic and paleoecologic analysis of shell assemblages in raised deposits
publisher	Universidad de Magallanes
publishDate	2009
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-686X2009000200001
work_keys_str_mv	AT gordillosandra quaternarymarinemollusksintierradelfuegoinsightsfromintegratedtaphonomicandpaleoecologicanalysisofshellassemblagesinraiseddeposits
_version_	1714205671876984832

QUATERNARY MARINE MOLLUSKS IN TIERRA DEL FUEGO: INSIGHTS FROM INTEGRATED TAPHONOMIC AND PALEOECOLOGIC ANALYSIS OF SHELL ASSEMBLAGES IN RAISED DEPOSITS

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