Taphonomic modes on fluvial deposits of the Monte Hermoso Formation (early Pliocene), Buenos Aires province, Argentina

The sedimentary deposits of the Monte Hermoso Formation, outcropping at its type locality (Farola Monte Hermoso, Buenos Aires province, Argentina), accumulated through fluvial processes acting on highly sinuous rivers. The Monte Hermoso Formation comprises a rich vertebrate fauna corresponding to th...

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Detalles Bibliográficos
Autores principales: Tomassini, R.L., Montalvo, C.I.
Formato: JOUR
Lenguaje:English
Materias:
Argentina
Fluvial deposits
Monte Hermoso Formation
Pliocene
Taphonomic modes
Vertebrates
depositional environment
floodplain
fluvial deposit
fossil assemblage
outcrop
paleoenvironment
taphonomy
Buenos Aires [Argentina]
Vertebrata
Zanclea
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00310182_v369_n_p282_Tomassini
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_00310182_v369_n_p282_Tomassini
record_format dspace
spelling todo:paper_00310182_v369_n_p282_Tomassini2023-10-03T14:40:55Z Taphonomic modes on fluvial deposits of the Monte Hermoso Formation (early Pliocene), Buenos Aires province, Argentina Tomassini, R.L. Montalvo, C.I. Argentina Fluvial deposits Monte Hermoso Formation Pliocene Taphonomic modes Vertebrates depositional environment floodplain fluvial deposit fossil assemblage outcrop paleoenvironment Pliocene taphonomy Argentina Buenos Aires [Argentina] Vertebrata Zanclea The sedimentary deposits of the Monte Hermoso Formation, outcropping at its type locality (Farola Monte Hermoso, Buenos Aires province, Argentina), accumulated through fluvial processes acting on highly sinuous rivers. The Monte Hermoso Formation comprises a rich vertebrate fauna corresponding to the Montehermosan Stage/Age (early Pliocene), which includes numerous and diverse vertebrate remains. Comparative taphonomic analysis indicated that the faunal assemblages coming from two different fossiliferous levels, FL 1 and FL 2, recognized in floodplain deposits and channel deposits respectively, are composed of remains affected by diverse taphonomic processes and therefore representing distinct taphonomic histories. The variations recorded between both fossiliferous levels, with respect to their taphonomic attributes and sedimentary context, allowed the recognition of two distinct taphonomic modes: floodplain in the FL 1 and channel-lag in the FL 2. These taphonomic modes represent different conditions within the range of taphonomic histories for the Monte Hermoso Formation assemblage formed by attritional accumulation of remains. At the moment, continental systems linked to fluvial environments have been poorly analyzed for the South American Neogene; this study contributes new information on taphonomic and paleoenvironmental characteristics of this type of deposit. © 2012 Elsevier B.V. JOUR English info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00310182_v369_n_p282_Tomassini
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
language English
orig_language_str_mv English
topic Argentina
Fluvial deposits
Monte Hermoso Formation
Pliocene
Taphonomic modes
Vertebrates
depositional environment
floodplain
fluvial deposit
fossil assemblage
outcrop
paleoenvironment
Pliocene
taphonomy
Argentina
Buenos Aires [Argentina]
Vertebrata
Zanclea
spellingShingle Argentina
Fluvial deposits
Monte Hermoso Formation
Pliocene
Taphonomic modes
Vertebrates
depositional environment
floodplain
fluvial deposit
fossil assemblage
outcrop
paleoenvironment
Pliocene
taphonomy
Argentina
Buenos Aires [Argentina]
Vertebrata
Zanclea
Tomassini, R.L.
Montalvo, C.I.
Taphonomic modes on fluvial deposits of the Monte Hermoso Formation (early Pliocene), Buenos Aires province, Argentina
topic_facet Argentina
Fluvial deposits
Monte Hermoso Formation
Pliocene
Taphonomic modes
Vertebrates
depositional environment
floodplain
fluvial deposit
fossil assemblage
outcrop
paleoenvironment
Pliocene
taphonomy
Argentina
Buenos Aires [Argentina]
Vertebrata
Zanclea
description The sedimentary deposits of the Monte Hermoso Formation, outcropping at its type locality (Farola Monte Hermoso, Buenos Aires province, Argentina), accumulated through fluvial processes acting on highly sinuous rivers. The Monte Hermoso Formation comprises a rich vertebrate fauna corresponding to the Montehermosan Stage/Age (early Pliocene), which includes numerous and diverse vertebrate remains. Comparative taphonomic analysis indicated that the faunal assemblages coming from two different fossiliferous levels, FL 1 and FL 2, recognized in floodplain deposits and channel deposits respectively, are composed of remains affected by diverse taphonomic processes and therefore representing distinct taphonomic histories. The variations recorded between both fossiliferous levels, with respect to their taphonomic attributes and sedimentary context, allowed the recognition of two distinct taphonomic modes: floodplain in the FL 1 and channel-lag in the FL 2. These taphonomic modes represent different conditions within the range of taphonomic histories for the Monte Hermoso Formation assemblage formed by attritional accumulation of remains. At the moment, continental systems linked to fluvial environments have been poorly analyzed for the South American Neogene; this study contributes new information on taphonomic and paleoenvironmental characteristics of this type of deposit. © 2012 Elsevier B.V.
format JOUR
author Tomassini, R.L.
Montalvo, C.I.
author_facet Tomassini, R.L.
Montalvo, C.I.
author_sort Tomassini, R.L.
title Taphonomic modes on fluvial deposits of the Monte Hermoso Formation (early Pliocene), Buenos Aires province, Argentina
title_short Taphonomic modes on fluvial deposits of the Monte Hermoso Formation (early Pliocene), Buenos Aires province, Argentina
title_full Taphonomic modes on fluvial deposits of the Monte Hermoso Formation (early Pliocene), Buenos Aires province, Argentina
title_fullStr Taphonomic modes on fluvial deposits of the Monte Hermoso Formation (early Pliocene), Buenos Aires province, Argentina
title_full_unstemmed Taphonomic modes on fluvial deposits of the Monte Hermoso Formation (early Pliocene), Buenos Aires province, Argentina
title_sort taphonomic modes on fluvial deposits of the monte hermoso formation (early pliocene), buenos aires province, argentina
url http://hdl.handle.net/20.500.12110/paper_00310182_v369_n_p282_Tomassini
work_keys_str_mv AT tomassinirl taphonomicmodesonfluvialdepositsofthemontehermosoformationearlypliocenebuenosairesprovinceargentina
AT montalvoci taphonomicmodesonfluvialdepositsofthemontehermosoformationearlypliocenebuenosairesprovinceargentina
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