Biostratigraphy and biochronology of the monte hermoso formation (early pliocene) at its type locality, buenos aires province, argentina

The Monte Hermoso Formation, cropping out at its type locality of Farola Monte Hermoso (Buenos Aires Province), is a classical fossiliferous unit of the South American Neogene, highlighted by the abundance and diversity of its vertebrate remains. However, its biostratigraphy and age have been largel...

Descripción completa

Guardado en:
Detalles Bibliográficos
Autores principales: Tomassini, R.L., Montalvo, C.I., Deschamps, C.M., Manera, T.
Formato: JOUR
Lenguaje:English
Materias:
Argentina
Biostratigraphy
Early Pliocene
Eumysops laeviplicatus Zone
Monte Hermoso Formation
abundance
biochronology
biostratigraphy
Neogene
Pliocene
provenance
vertebrate
Buenos Aires [Argentina]
Monte Hermoso
Amphibia
Aves
Didelphimorphia
Litopterna
Mammalia
Notoungulata
Osteichthyes
Reptilia
Rodentia
Vertebrata
Xenarthra
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_08959811_v48_n_p31_Tomassini
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_08959811_v48_n_p31_Tomassini
record_format dspace
spelling todo:paper_08959811_v48_n_p31_Tomassini2023-10-03T15:43:09Z Biostratigraphy and biochronology of the monte hermoso formation (early pliocene) at its type locality, buenos aires province, argentina Tomassini, R.L. Montalvo, C.I. Deschamps, C.M. Manera, T. Argentina Biostratigraphy Early Pliocene Eumysops laeviplicatus Zone Monte Hermoso Formation abundance biochronology biostratigraphy Neogene Pliocene provenance vertebrate Argentina Buenos Aires [Argentina] Monte Hermoso Amphibia Aves Didelphimorphia Litopterna Mammalia Notoungulata Osteichthyes Reptilia Rodentia Vertebrata Xenarthra The Monte Hermoso Formation, cropping out at its type locality of Farola Monte Hermoso (Buenos Aires Province), is a classical fossiliferous unit of the South American Neogene, highlighted by the abundance and diversity of its vertebrate remains. However, its biostratigraphy and age have been largely debated, and numerous discrepancies and controversies have been stated. In this regard, the result of the analysis of new materials recovered from the different levels of this formation, following a strict control of stratigraphic provenance, is here reported. As well, the provenance of specimens of previous collections has been evaluated. The studied assemblage consists of Osteichthyes, Amphibia, Reptilia, Aves and Mammalia. These latter are the most numerous and belong to the Didelphimorphia, Polydolopimorphia, Rodentia, Notoungulata, Litopterna and Xenarthra. The recorded taxa suggest no important faunistic variations among the different levels of the Monte Hermoso Formation that would imply significant chronological differences, and hence, justify the recognition of two biostratigraphic units. The analysis of the first and last records as well as the taxa considered as exclusive, does not support the validity of the biozones of Trigodon gaudryi and Neocavia depressidens previously proposed. On this basis, a new scheme for the Monte Hermoso Formation at its type locality is proposed, including a new single biostratigraphic unit. This unit is the Eumysops laeviplicatus Range Zone, which represents the biostratigraphic base for the Montehermosan Stage/Age of the early Pliocene. © 2013 Elsevier Ltd. JOUR English info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_08959811_v48_n_p31_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
Biostratigraphy
Early Pliocene
Eumysops laeviplicatus Zone
Monte Hermoso Formation
abundance
biochronology
biostratigraphy
Neogene
Pliocene
provenance
vertebrate
Argentina
Buenos Aires [Argentina]
Monte Hermoso
Amphibia
Aves
Didelphimorphia
Litopterna
Mammalia
Notoungulata
Osteichthyes
Reptilia
Rodentia
Vertebrata
Xenarthra
spellingShingle Argentina
Biostratigraphy
Early Pliocene
Eumysops laeviplicatus Zone
Monte Hermoso Formation
abundance
biochronology
biostratigraphy
Neogene
Pliocene
provenance
vertebrate
Argentina
Buenos Aires [Argentina]
Monte Hermoso
Amphibia
Aves
Didelphimorphia
Litopterna
Mammalia
Notoungulata
Osteichthyes
Reptilia
Rodentia
Vertebrata
Xenarthra
Tomassini, R.L.
Montalvo, C.I.
Deschamps, C.M.
Manera, T.
Biostratigraphy and biochronology of the monte hermoso formation (early pliocene) at its type locality, buenos aires province, argentina
topic_facet Argentina
Biostratigraphy
Early Pliocene
Eumysops laeviplicatus Zone
Monte Hermoso Formation
abundance
biochronology
biostratigraphy
Neogene
Pliocene
provenance
vertebrate
Argentina
Buenos Aires [Argentina]
Monte Hermoso
Amphibia
Aves
Didelphimorphia
Litopterna
Mammalia
Notoungulata
Osteichthyes
Reptilia
Rodentia
Vertebrata
Xenarthra
description The Monte Hermoso Formation, cropping out at its type locality of Farola Monte Hermoso (Buenos Aires Province), is a classical fossiliferous unit of the South American Neogene, highlighted by the abundance and diversity of its vertebrate remains. However, its biostratigraphy and age have been largely debated, and numerous discrepancies and controversies have been stated. In this regard, the result of the analysis of new materials recovered from the different levels of this formation, following a strict control of stratigraphic provenance, is here reported. As well, the provenance of specimens of previous collections has been evaluated. The studied assemblage consists of Osteichthyes, Amphibia, Reptilia, Aves and Mammalia. These latter are the most numerous and belong to the Didelphimorphia, Polydolopimorphia, Rodentia, Notoungulata, Litopterna and Xenarthra. The recorded taxa suggest no important faunistic variations among the different levels of the Monte Hermoso Formation that would imply significant chronological differences, and hence, justify the recognition of two biostratigraphic units. The analysis of the first and last records as well as the taxa considered as exclusive, does not support the validity of the biozones of Trigodon gaudryi and Neocavia depressidens previously proposed. On this basis, a new scheme for the Monte Hermoso Formation at its type locality is proposed, including a new single biostratigraphic unit. This unit is the Eumysops laeviplicatus Range Zone, which represents the biostratigraphic base for the Montehermosan Stage/Age of the early Pliocene. © 2013 Elsevier Ltd.
format JOUR
author Tomassini, R.L.
Montalvo, C.I.
Deschamps, C.M.
Manera, T.
author_facet Tomassini, R.L.
Montalvo, C.I.
Deschamps, C.M.
Manera, T.
author_sort Tomassini, R.L.
title Biostratigraphy and biochronology of the monte hermoso formation (early pliocene) at its type locality, buenos aires province, argentina
title_short Biostratigraphy and biochronology of the monte hermoso formation (early pliocene) at its type locality, buenos aires province, argentina
title_full Biostratigraphy and biochronology of the monte hermoso formation (early pliocene) at its type locality, buenos aires province, argentina
title_fullStr Biostratigraphy and biochronology of the monte hermoso formation (early pliocene) at its type locality, buenos aires province, argentina
title_full_unstemmed Biostratigraphy and biochronology of the monte hermoso formation (early pliocene) at its type locality, buenos aires province, argentina
title_sort biostratigraphy and biochronology of the monte hermoso formation (early pliocene) at its type locality, buenos aires province, argentina
url http://hdl.handle.net/20.500.12110/paper_08959811_v48_n_p31_Tomassini
work_keys_str_mv AT tomassinirl biostratigraphyandbiochronologyofthemontehermosoformationearlyplioceneatitstypelocalitybuenosairesprovinceargentina
AT montalvoci biostratigraphyandbiochronologyofthemontehermosoformationearlyplioceneatitstypelocalitybuenosairesprovinceargentina
AT deschampscm biostratigraphyandbiochronologyofthemontehermosoformationearlyplioceneatitstypelocalitybuenosairesprovinceargentina
AT manerat biostratigraphyandbiochronologyofthemontehermosoformationearlyplioceneatitstypelocalitybuenosairesprovinceargentina
_version_ 1782027772860825600

Ejemplares similares