Late Miocene crocodylians from northeast Argentina: New approaches about the austral components of the Neogene South American crocodylian fauna
- Autores
- Bona, Paula; Riff Goncalves, Douglas; Brandoni, Zulma Nelida
- Año de publicación
- 2012
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- The richest and more explored regions concerning Miocene crocodylians in South America are the basins surrounding the areas of Urumaco (Venezuela), La Venta (Colombia), Acre (Northwest Brazil) and Paraná (Northeast Argentina). Fossils from the late Miocene in the Paraná area were recovered from the Conglomerado Osífero (Ituzaingó Formation) and assigned to several taxa of Caimaninae (Alligatoroidea) and to a taxon of Gavialoidea. The late Miocene fauna of crocodylians recorded in northeast Argentina differs from coeval ones of northern South America by the absence of crocodyloids, some alligatorid genera (such as Purussaurus, Melanosuchus, and Paleosuchus) and by the scarce gavialoid species. Giant forms, conspicuous in the northern South American deposits, are also absent in southern latitudes. Despite this, the austral South American crocodylian fauna exhibits strong affinities with the northern, contemporary forms, sharing taxa at generic (i.e. Caiman and Gryposuchus) and even specific levels (i.e. Mourasuchus nativus). The sharing of such freshwater taxa in the Miocene indicates partial connections of drainage basins through swamp areas on their boundaries, and is evidence against the assumption of an intracontinental coeval seaway link in this continent proposed by several authors.
Fil: Bona, Paula. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina. Universidad Nacional de la Plata. Facultad de Ciencias Naturales y Museo. División Paleontología Vertebrados; Argentina
Fil: Riff Goncalves, Douglas. Universidade Federal de Uberlândia; Brasil
Fil: Brandoni, Zulma Nelida. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina. Universidad Nacional de la Plata. Facultad de Ciencias Naturales y Museo. División Paleontología Vertebrados; Argentina - Materia
-
Caimaninae
Crocodylia
Gavialidae - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/23291
Ver los metadatos del registro completo
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oai:ri.conicet.gov.ar:11336/23291 |
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3498 |
network_name_str |
CONICET Digital (CONICET) |
spelling |
Late Miocene crocodylians from northeast Argentina: New approaches about the austral components of the Neogene South American crocodylian faunaBona, PaulaRiff Goncalves, DouglasBrandoni, Zulma NelidaCaimaninaeCrocodyliaGavialidaehttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1The richest and more explored regions concerning Miocene crocodylians in South America are the basins surrounding the areas of Urumaco (Venezuela), La Venta (Colombia), Acre (Northwest Brazil) and Paraná (Northeast Argentina). Fossils from the late Miocene in the Paraná area were recovered from the Conglomerado Osífero (Ituzaingó Formation) and assigned to several taxa of Caimaninae (Alligatoroidea) and to a taxon of Gavialoidea. The late Miocene fauna of crocodylians recorded in northeast Argentina differs from coeval ones of northern South America by the absence of crocodyloids, some alligatorid genera (such as Purussaurus, Melanosuchus, and Paleosuchus) and by the scarce gavialoid species. Giant forms, conspicuous in the northern South American deposits, are also absent in southern latitudes. Despite this, the austral South American crocodylian fauna exhibits strong affinities with the northern, contemporary forms, sharing taxa at generic (i.e. Caiman and Gryposuchus) and even specific levels (i.e. Mourasuchus nativus). The sharing of such freshwater taxa in the Miocene indicates partial connections of drainage basins through swamp areas on their boundaries, and is evidence against the assumption of an intracontinental coeval seaway link in this continent proposed by several authors.Fil: Bona, Paula. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina. Universidad Nacional de la Plata. Facultad de Ciencias Naturales y Museo. División Paleontología Vertebrados; ArgentinaFil: Riff Goncalves, Douglas. Universidade Federal de Uberlândia; BrasilFil: Brandoni, Zulma Nelida. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina. Universidad Nacional de la Plata. Facultad de Ciencias Naturales y Museo. División Paleontología Vertebrados; ArgentinaRoyal Society of Edinburgh2012-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/23291Bona, Paula; Riff Goncalves, Douglas; Brandoni, Zulma Nelida; Late Miocene crocodylians from northeast Argentina: New approaches about the austral components of the Neogene South American crocodylian fauna; Royal Society of Edinburgh; Earth and Environmental Science Transactions of the Royal Society of Edinburgh; 103; 3-4; 9-2012; 551-5701755-6910CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1017/S175569101300042Xinfo:eu-repo/semantics/altIdentifier/url/https://www.cambridge.org/core/journals/earth-and-environmental-science-transactions-of-royal-society-of-edinburgh/article/late-miocene-crocodylians-from-northeast-argentina-new-approaches-about-the-austral-components-of-the-neogene-south-american-crocodylian-fauna/02FBDA8D8905DB21FE4583503B2235B4info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:47:05Zoai:ri.conicet.gov.ar:11336/23291instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 09:47:05.594CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Late Miocene crocodylians from northeast Argentina: New approaches about the austral components of the Neogene South American crocodylian fauna |
title |
Late Miocene crocodylians from northeast Argentina: New approaches about the austral components of the Neogene South American crocodylian fauna |
spellingShingle |
Late Miocene crocodylians from northeast Argentina: New approaches about the austral components of the Neogene South American crocodylian fauna Bona, Paula Caimaninae Crocodylia Gavialidae |
title_short |
Late Miocene crocodylians from northeast Argentina: New approaches about the austral components of the Neogene South American crocodylian fauna |
title_full |
Late Miocene crocodylians from northeast Argentina: New approaches about the austral components of the Neogene South American crocodylian fauna |
title_fullStr |
Late Miocene crocodylians from northeast Argentina: New approaches about the austral components of the Neogene South American crocodylian fauna |
title_full_unstemmed |
Late Miocene crocodylians from northeast Argentina: New approaches about the austral components of the Neogene South American crocodylian fauna |
title_sort |
Late Miocene crocodylians from northeast Argentina: New approaches about the austral components of the Neogene South American crocodylian fauna |
dc.creator.none.fl_str_mv |
Bona, Paula Riff Goncalves, Douglas Brandoni, Zulma Nelida |
author |
Bona, Paula |
author_facet |
Bona, Paula Riff Goncalves, Douglas Brandoni, Zulma Nelida |
author_role |
author |
author2 |
Riff Goncalves, Douglas Brandoni, Zulma Nelida |
author2_role |
author author |
dc.subject.none.fl_str_mv |
Caimaninae Crocodylia Gavialidae |
topic |
Caimaninae Crocodylia Gavialidae |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
The richest and more explored regions concerning Miocene crocodylians in South America are the basins surrounding the areas of Urumaco (Venezuela), La Venta (Colombia), Acre (Northwest Brazil) and Paraná (Northeast Argentina). Fossils from the late Miocene in the Paraná area were recovered from the Conglomerado Osífero (Ituzaingó Formation) and assigned to several taxa of Caimaninae (Alligatoroidea) and to a taxon of Gavialoidea. The late Miocene fauna of crocodylians recorded in northeast Argentina differs from coeval ones of northern South America by the absence of crocodyloids, some alligatorid genera (such as Purussaurus, Melanosuchus, and Paleosuchus) and by the scarce gavialoid species. Giant forms, conspicuous in the northern South American deposits, are also absent in southern latitudes. Despite this, the austral South American crocodylian fauna exhibits strong affinities with the northern, contemporary forms, sharing taxa at generic (i.e. Caiman and Gryposuchus) and even specific levels (i.e. Mourasuchus nativus). The sharing of such freshwater taxa in the Miocene indicates partial connections of drainage basins through swamp areas on their boundaries, and is evidence against the assumption of an intracontinental coeval seaway link in this continent proposed by several authors. Fil: Bona, Paula. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina. Universidad Nacional de la Plata. Facultad de Ciencias Naturales y Museo. División Paleontología Vertebrados; Argentina Fil: Riff Goncalves, Douglas. Universidade Federal de Uberlândia; Brasil Fil: Brandoni, Zulma Nelida. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina. Universidad Nacional de la Plata. Facultad de Ciencias Naturales y Museo. División Paleontología Vertebrados; Argentina |
description |
The richest and more explored regions concerning Miocene crocodylians in South America are the basins surrounding the areas of Urumaco (Venezuela), La Venta (Colombia), Acre (Northwest Brazil) and Paraná (Northeast Argentina). Fossils from the late Miocene in the Paraná area were recovered from the Conglomerado Osífero (Ituzaingó Formation) and assigned to several taxa of Caimaninae (Alligatoroidea) and to a taxon of Gavialoidea. The late Miocene fauna of crocodylians recorded in northeast Argentina differs from coeval ones of northern South America by the absence of crocodyloids, some alligatorid genera (such as Purussaurus, Melanosuchus, and Paleosuchus) and by the scarce gavialoid species. Giant forms, conspicuous in the northern South American deposits, are also absent in southern latitudes. Despite this, the austral South American crocodylian fauna exhibits strong affinities with the northern, contemporary forms, sharing taxa at generic (i.e. Caiman and Gryposuchus) and even specific levels (i.e. Mourasuchus nativus). The sharing of such freshwater taxa in the Miocene indicates partial connections of drainage basins through swamp areas on their boundaries, and is evidence against the assumption of an intracontinental coeval seaway link in this continent proposed by several authors. |
publishDate |
2012 |
dc.date.none.fl_str_mv |
2012-09 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
format |
article |
status_str |
publishedVersion |
dc.identifier.none.fl_str_mv |
http://hdl.handle.net/11336/23291 Bona, Paula; Riff Goncalves, Douglas; Brandoni, Zulma Nelida; Late Miocene crocodylians from northeast Argentina: New approaches about the austral components of the Neogene South American crocodylian fauna; Royal Society of Edinburgh; Earth and Environmental Science Transactions of the Royal Society of Edinburgh; 103; 3-4; 9-2012; 551-570 1755-6910 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/23291 |
identifier_str_mv |
Bona, Paula; Riff Goncalves, Douglas; Brandoni, Zulma Nelida; Late Miocene crocodylians from northeast Argentina: New approaches about the austral components of the Neogene South American crocodylian fauna; Royal Society of Edinburgh; Earth and Environmental Science Transactions of the Royal Society of Edinburgh; 103; 3-4; 9-2012; 551-570 1755-6910 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/doi/10.1017/S175569101300042X info:eu-repo/semantics/altIdentifier/url/https://www.cambridge.org/core/journals/earth-and-environmental-science-transactions-of-royal-society-of-edinburgh/article/late-miocene-crocodylians-from-northeast-argentina-new-approaches-about-the-austral-components-of-the-neogene-south-american-crocodylian-fauna/02FBDA8D8905DB21FE4583503B2235B4 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
dc.format.none.fl_str_mv |
application/pdf application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
Royal Society of Edinburgh |
publisher.none.fl_str_mv |
Royal Society of Edinburgh |
dc.source.none.fl_str_mv |
reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
reponame_str |
CONICET Digital (CONICET) |
collection |
CONICET Digital (CONICET) |
instname_str |
Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.name.fl_str_mv |
CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.mail.fl_str_mv |
dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
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1844613468256206848 |
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13.070432 |