Análisis tafonómico de quitones (Polyplacophora: Mollusca) holocenos de Tierra del Fuego, Argentina
Abstract
Resumen. En el Holoceno marino de Tierra del Fuego los quitones representan una fracción menor dentro de las asociaciones de moluscos, principalmente formadas por bivalvos y gastrópodos. En este trabajo se analizan las razones de su escasa abundancia relativa. El análisis de sus atributos tafonómicos y paleontológicos indica que la condición tafonómica de una placa de quitón es el resultado de una combinación de factores biológicos, ecológicos y ambientales. Se concluye que los quitones constituyen buenos indicadores paleoecológicos y paleoambientales, ya que mantienen fidelidad ecológica respecto a las paleocomunidades de las cuales derivan, y también permiten evaluar los procesos post-mortem ocurridos hasta su descubrimiento. Abstract. TAPHONOMIC ANALYSIS OF HOLOCENECHITONS (POLYPLACOPHORA: MOLLUSCA) FROM TIERRA DEL FUEGO, ARGENTINA.Chitons from the marine Holocene of Tierra del Fuego represent a minor fraction of the mollusc assemblages, mostly composed of bivalves and gastropods. The reasons of their limited relative abundance are considered in this work. The analysis of their taphonomic and paleontologic attributes indicates that the taphonomic condition on a chiton plate is the result of a combination of biological, ecological and environmental factors. It is concluded that chitons are good paleoecological and paleoenvironmental indicators, since they maintain ecological fidelity with respect to their original paleocommunities and they are suitable to evaluate the post-mortem events that took place up to they are found within the fossil record.Downloads
Published
Issue
Section
License
Authors publishing in Ameghiniana have the option of making their article freely available online. Authors opting for the Open Access must pay a fee of $300 (US dollars) to cover article-processing costs and to ensure the article is made open access. Please contact the Production Team after the acceptance of your manuscript if you are interested in making your article Open Access. This option implies by default a license Creative Commons Attribution Non-Commercial-NoDerivs License (CC BY NC ND). If your funding institution requires a different licensing option please communicate this to the Production Team after the acceptance of your manusctipt.