Late Cretaceous aquatic plant world in Patagonia, Argentina
In this contribution, we describe latest Cretaceous aquatic plant communities from the La Colonia Formation, Patagonia, Argentina, based on their taxonomic components and paleoecological attributes. The La Colonia Formation is a geological unit deposited during a Maastrichtian-Danian transgressive e...
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ftconicet:oai:ri.conicet.gov.ar:11336/20957 2023-10-09T21:55:56+02:00 Late Cretaceous aquatic plant world in Patagonia, Argentina Cúneo, Néstor Rubén Gandolfo, María A. Zamaloa, María del Carmen Hermsen, Elizabeth application/pdf http://hdl.handle.net/11336/20957 eng eng Public Library of Science info:eu-repo/semantics/altIdentifier/doi/10.1371/journal.pone.0104749 info:eu-repo/semantics/altIdentifier/url/http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0104749 http://hdl.handle.net/11336/20957 Cúneo, Néstor Rubén; Gandolfo, María A.; Zamaloa, María del Carmen; Hermsen, Elizabeth; Late Cretaceous aquatic plant world in Patagonia, Argentina; Public Library of Science; Plos One; 9; 8; 8-2014; 1-18; e104749 1932-6203 CONICET Digital CONICET info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/2.5/ar/ Paleoenvironments Paleoecology Cretaceous South America https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 https://purl.org/becyt/ford/1.6 info:eu-repo/semantics/article info:ar-repo/semantics/artículo info:eu-repo/semantics/publishedVersion ftconicet https://doi.org/10.1371/journal.pone.0104749 2023-09-24T18:35:51Z In this contribution, we describe latest Cretaceous aquatic plant communities from the La Colonia Formation, Patagonia, Argentina, based on their taxonomic components and paleoecological attributes. The La Colonia Formation is a geological unit deposited during a Maastrichtian-Danian transgressive episode of the South Atlantic Ocean. This event resulted in the deposition of a series of fine-grained sediments associated with lagoon systems occurring along irregular coastal plains in northern Patagonia. These deposits preserved a diverse biota, including aquatic and terrestrial plants and animals. The aquatic macrophytes can be broadly divided into two groups: free-floating and rooted, the latter with emergent or floating leaves. Free-floating macrophytes include ferns in Salviniaceae (Azolla and Paleoazolla) and a monocot (Araceae). Floating microphytes include green algae (Botryoccocus, Pediastrum and Zygnemataceae). Among the rooted components, marsileaceous water ferns (including Regnellidium and an extinct form) and the eudicot angiosperm Nelumbo (Nelumbonaceae) are the dominant groups. Terrestrial plants occurring in the vegetation surrounding the lagoons include monocots (palms and Typhaceae), ferns with affinities to Dicksoniaceae, conifers, and dicots. A reconstruction of the aquatic plant paleocommuniy is provided based on the distribution of the fossils along a freshwater horizon within the La Colonia Formation. This contribution constitutes the first reconstruction of a Cretaceous aquatic habitat for southern South America. Fil: Cúneo, Néstor Rubén. Museo Paleontológico Egidio Feruglio; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Gandolfo, María A. Cornell University; Estados Unidos Fil: Zamaloa, María del Carmen. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ecología, Genética y Evolución; Argentina Fil: Hermsen, Elizabeth. Ohio University; Estados Unidos Article in Journal/Newspaper South Atlantic Ocean CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) Patagonia Argentina PLoS ONE 9 8 e104749 |
institution |
Open Polar |
collection |
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) |
op_collection_id |
ftconicet |
language |
English |
topic |
Paleoenvironments Paleoecology Cretaceous South America https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 https://purl.org/becyt/ford/1.6 |
spellingShingle |
Paleoenvironments Paleoecology Cretaceous South America https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 https://purl.org/becyt/ford/1.6 Cúneo, Néstor Rubén Gandolfo, María A. Zamaloa, María del Carmen Hermsen, Elizabeth Late Cretaceous aquatic plant world in Patagonia, Argentina |
topic_facet |
Paleoenvironments Paleoecology Cretaceous South America https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 https://purl.org/becyt/ford/1.6 |
description |
In this contribution, we describe latest Cretaceous aquatic plant communities from the La Colonia Formation, Patagonia, Argentina, based on their taxonomic components and paleoecological attributes. The La Colonia Formation is a geological unit deposited during a Maastrichtian-Danian transgressive episode of the South Atlantic Ocean. This event resulted in the deposition of a series of fine-grained sediments associated with lagoon systems occurring along irregular coastal plains in northern Patagonia. These deposits preserved a diverse biota, including aquatic and terrestrial plants and animals. The aquatic macrophytes can be broadly divided into two groups: free-floating and rooted, the latter with emergent or floating leaves. Free-floating macrophytes include ferns in Salviniaceae (Azolla and Paleoazolla) and a monocot (Araceae). Floating microphytes include green algae (Botryoccocus, Pediastrum and Zygnemataceae). Among the rooted components, marsileaceous water ferns (including Regnellidium and an extinct form) and the eudicot angiosperm Nelumbo (Nelumbonaceae) are the dominant groups. Terrestrial plants occurring in the vegetation surrounding the lagoons include monocots (palms and Typhaceae), ferns with affinities to Dicksoniaceae, conifers, and dicots. A reconstruction of the aquatic plant paleocommuniy is provided based on the distribution of the fossils along a freshwater horizon within the La Colonia Formation. This contribution constitutes the first reconstruction of a Cretaceous aquatic habitat for southern South America. Fil: Cúneo, Néstor Rubén. Museo Paleontológico Egidio Feruglio; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Gandolfo, María A. Cornell University; Estados Unidos Fil: Zamaloa, María del Carmen. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ecología, Genética y Evolución; Argentina Fil: Hermsen, Elizabeth. Ohio University; Estados Unidos |
format |
Article in Journal/Newspaper |
author |
Cúneo, Néstor Rubén Gandolfo, María A. Zamaloa, María del Carmen Hermsen, Elizabeth |
author_facet |
Cúneo, Néstor Rubén Gandolfo, María A. Zamaloa, María del Carmen Hermsen, Elizabeth |
author_sort |
Cúneo, Néstor Rubén |
title |
Late Cretaceous aquatic plant world in Patagonia, Argentina |
title_short |
Late Cretaceous aquatic plant world in Patagonia, Argentina |
title_full |
Late Cretaceous aquatic plant world in Patagonia, Argentina |
title_fullStr |
Late Cretaceous aquatic plant world in Patagonia, Argentina |
title_full_unstemmed |
Late Cretaceous aquatic plant world in Patagonia, Argentina |
title_sort |
late cretaceous aquatic plant world in patagonia, argentina |
publisher |
Public Library of Science |
url |
http://hdl.handle.net/11336/20957 |
geographic |
Patagonia Argentina |
geographic_facet |
Patagonia Argentina |
genre |
South Atlantic Ocean |
genre_facet |
South Atlantic Ocean |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1371/journal.pone.0104749 info:eu-repo/semantics/altIdentifier/url/http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0104749 http://hdl.handle.net/11336/20957 Cúneo, Néstor Rubén; Gandolfo, María A.; Zamaloa, María del Carmen; Hermsen, Elizabeth; Late Cretaceous aquatic plant world in Patagonia, Argentina; Public Library of Science; Plos One; 9; 8; 8-2014; 1-18; e104749 1932-6203 CONICET Digital CONICET |
op_rights |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/2.5/ar/ |
op_doi |
https://doi.org/10.1371/journal.pone.0104749 |
container_title |
PLoS ONE |
container_volume |
9 |
container_issue |
8 |
container_start_page |
e104749 |
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