Taphonomic analysis of the late Pleistocene small mammals of Quequén Salado River, Buenos Aires, Argentina

A taphonomic analysis was made on small mammal remains recovered from fossil bone accumulations, interpreted as whole and fragmented pellets, from Upper Pleistocene levels of the Quequén Salado River cliffs (Buenos Aires, Argentina). Additionally, the probable source of the accumulation and some fea...

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Detalles Bibliográficos
Autor principal:	Visconti, Graciela
Publicado:	2012
Materias:	Pleistocene Small mammals Taphonomy Mammalia Raptores Strigiformes
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_15197530_v15_n3_p345_Montalvo http://hdl.handle.net/20.500.12110/paper_15197530_v15_n3_p345_Montalvo
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_15197530_v15_n3_p345_Montalvo
record_format	dspace
spelling	paper:paper_15197530_v15_n3_p345_Montalvo2023-06-08T16:18:48Z Taphonomic analysis of the late Pleistocene small mammals of Quequén Salado River, Buenos Aires, Argentina Visconti, Graciela Pleistocene Small mammals Taphonomy Mammalia Raptores Strigiformes A taphonomic analysis was made on small mammal remains recovered from fossil bone accumulations, interpreted as whole and fragmented pellets, from Upper Pleistocene levels of the Quequén Salado River cliffs (Buenos Aires, Argentina). Additionally, the probable source of the accumulation and some features associated with post-burial preservation processes are discussed. From the available information it is possible, through analyzing the anatomical representation of the remains and the degree of digestion, to show affinities with extant accumulations produced by nocturnal birds of prey. Nevertheless, breakage patterns are biased in this association as it shows much higher values than in a recent analysis based on pellets of extant nocturnal raptors. Diagenetic bone fractures found in skeletal elements have probably hidden the fractures produced at the moment of predation. Microstructural characteristics of remains preserved in the pellets are indicative of good preservation indicating rapid burial. Associated remains, interpreted as originating from disassembled pellets, also may have been buried rapidly as they do not show any weathering. From a biostratigraphic point of view and based on the associated mammalian megafauna, this accumulation can be assigned to the Lujanian Stage/Age of the late Pleistocene. © 2012 by the Sociedade Brasileira de Paleontologia. Fil:Visconti, G. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2012 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_15197530_v15_n3_p345_Montalvo http://hdl.handle.net/20.500.12110/paper_15197530_v15_n3_p345_Montalvo
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Pleistocene Small mammals Taphonomy Mammalia Raptores Strigiformes
spellingShingle	Pleistocene Small mammals Taphonomy Mammalia Raptores Strigiformes Visconti, Graciela Taphonomic analysis of the late Pleistocene small mammals of Quequén Salado River, Buenos Aires, Argentina
topic_facet	Pleistocene Small mammals Taphonomy Mammalia Raptores Strigiformes
description	A taphonomic analysis was made on small mammal remains recovered from fossil bone accumulations, interpreted as whole and fragmented pellets, from Upper Pleistocene levels of the Quequén Salado River cliffs (Buenos Aires, Argentina). Additionally, the probable source of the accumulation and some features associated with post-burial preservation processes are discussed. From the available information it is possible, through analyzing the anatomical representation of the remains and the degree of digestion, to show affinities with extant accumulations produced by nocturnal birds of prey. Nevertheless, breakage patterns are biased in this association as it shows much higher values than in a recent analysis based on pellets of extant nocturnal raptors. Diagenetic bone fractures found in skeletal elements have probably hidden the fractures produced at the moment of predation. Microstructural characteristics of remains preserved in the pellets are indicative of good preservation indicating rapid burial. Associated remains, interpreted as originating from disassembled pellets, also may have been buried rapidly as they do not show any weathering. From a biostratigraphic point of view and based on the associated mammalian megafauna, this accumulation can be assigned to the Lujanian Stage/Age of the late Pleistocene. © 2012 by the Sociedade Brasileira de Paleontologia.
author	Visconti, Graciela
author_facet	Visconti, Graciela
author_sort	Visconti, Graciela
title	Taphonomic analysis of the late Pleistocene small mammals of Quequén Salado River, Buenos Aires, Argentina
title_short	Taphonomic analysis of the late Pleistocene small mammals of Quequén Salado River, Buenos Aires, Argentina
title_full	Taphonomic analysis of the late Pleistocene small mammals of Quequén Salado River, Buenos Aires, Argentina
title_fullStr	Taphonomic analysis of the late Pleistocene small mammals of Quequén Salado River, Buenos Aires, Argentina
title_full_unstemmed	Taphonomic analysis of the late Pleistocene small mammals of Quequén Salado River, Buenos Aires, Argentina
title_sort	taphonomic analysis of the late pleistocene small mammals of quequén salado river, buenos aires, argentina
publishDate	2012
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_15197530_v15_n3_p345_Montalvo http://hdl.handle.net/20.500.12110/paper_15197530_v15_n3_p345_Montalvo
work_keys_str_mv	AT viscontigraciela taphonomicanalysisofthelatepleistocenesmallmammalsofquequensaladoriverbuenosairesargentina
_version_	1768542380772818944

Taphonomic analysis of the late Pleistocene small mammals of Quequén Salado River, Buenos Aires, Argentina

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