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dc.contributor.author Cúneo, Néstor Rubén
dc.contributor.author Gandolfo, María A.
dc.contributor.author Zamaloa, María del Carmen
dc.contributor.author Hermsen, Elizabeth
dc.date.available 2017-07-19T20:29:50Z
dc.date.issued 2014-08
dc.identifier.citation 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
dc.identifier.issn 1932-6203
dc.identifier.uri http://hdl.handle.net/11336/20957
dc.description.abstract 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.
dc.format application/pdf
dc.language.iso eng
dc.publisher Public Library of Science
dc.rights info:eu-repo/semantics/openAccess
dc.rights.uri https://creativecommons.org/licenses/by/2.5/ar/
dc.subject Paleoenvironments
dc.subject Paleoecology
dc.subject Cretaceous
dc.subject South America
dc.subject.classification Paleontología
dc.subject.classification Ciencias de la Tierra y relacionadas con el Medio Ambiente
dc.subject.classification CIENCIAS NATURALES Y EXACTAS
dc.subject.classification Ecología
dc.subject.classification Ciencias Biológicas
dc.subject.classification CIENCIAS NATURALES Y EXACTAS
dc.title Late Cretaceous aquatic plant world in Patagonia, Argentina
dc.type info:eu-repo/semantics/article
dc.type info:ar-repo/semantics/artículo
dc.type info:eu-repo/semantics/publishedVersion
dc.date.updated 2017-06-30T13:28:24Z
dc.journal.volume 9
dc.journal.number 8
dc.journal.pagination 1-18; e104749
dc.journal.pais Estados Unidos
dc.journal.ciudad San Francisco
dc.description.fil Fil: Cúneo, Néstor Rubén. Museo Paleontológico Egidio Feruglio; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil Fil: Gandolfo, María A.. Cornell University; Estados Unidos
dc.description.fil Fil: Zamaloa, María del Carmen. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ecología, Genética y Evolución; Argentina
dc.description.fil Fil: Hermsen, Elizabeth. Ohio University; Estados Unidos
dc.journal.title Plos One
dc.relation.alternativeid info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1371/journal.pone.0104749
dc.relation.alternativeid info:eu-repo/semantics/altIdentifier/url/http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0104749


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info:eu-repo/semantics/openAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution 2.5 Unported (CC BY 2.5)