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dc.date.accessioned 2020-06-03T16:59:43Z
dc.date.available 2020-06-03T16:59:43Z
dc.date.issued 2018-06
dc.identifier.uri http://sedici.unlp.edu.ar/handle/10915/97418
dc.description.abstract We report here two megaspores species related to the aquatic ferns of the Order Salviniales from the Late Cretaceous Mata Amarilla Formation (Austral Basin), southern Santa Cruz Province, Argentina. They were assigned to the species Arcellites disciformis and Balmeisporites cf. B. holodictyus. The presence of A. disciformis, in particular, is significant not only because it represents the first record for the Southern Hemisphere, indicating a bi-hemispheric distribution for the species, but it also increases the diversity of this genus in Patagonia. The new record enlarge the importance of water ferns in the Late Cretaceous landscapes of southern South America by adding the presence of a new species. The common occurrences of Arcellites and Balmeisporites, whether in shallow, fresh or brackish water facies, support a local aquatic paleoenvironment for the Mata Amarilla Formation, as was also suggested by the sedimentological evidence. They also allow referring the lower and middle levels of the Mata Amarilla Formation to the Chronostratigraphic Zone M3 (Albian-Cenomanian) defined for the cretaceous of Patagonia on the bases of its megaspore content. en
dc.format.extent 607-616 es
dc.language en es
dc.subject Salviniales es
dc.subject Hydropteridales es
dc.subject Arcellites es
dc.subject Megaspores es
dc.subject Cenomanian es
dc.subject South America es
dc.subject Argentina es
dc.title Salvinialean megaspores in the Late Cretaceous of southern Patagonia, Argentina en
dc.type Articulo es
sedici.identifier.uri https://ri.conicet.gov.ar/11336/85086 es
sedici.identifier.uri http://www.app.pan.pl/article/item/app004912018.html es
sedici.identifier.other http://dx.doi.org/10.4202/app.00491.2018 es
sedici.identifier.other hdl:11336/85086 es
sedici.identifier.issn 1732-2421 es
sedici.creator.person Santamarina, Patricio Emmanuel es
sedici.creator.person Barreda, Viviana Dora es
sedici.creator.person Iglesias, Ari es
sedici.creator.person Varela, Augusto Nicolás es
sedici.subject.materias Paleontología es
sedici.description.fulltext true es
mods.originInfo.place Centro de Investigaciones Geológicas es
sedici.subtype Articulo es
sedici.rights.license Creative Commons Attribution 4.0 International (CC BY 4.0)
sedici.rights.uri http://creativecommons.org/licenses/by/4.0/
sedici.description.peerReview peer-review es
sedici.relation.journalTitle Acta Palaeontologica Polonica es
sedici.relation.journalVolumeAndIssue vol. 63, no. 3 es


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Creative Commons Attribution 4.0 International (CC BY 4.0) Except where otherwise noted, this item's license is described as Creative Commons Attribution 4.0 International (CC BY 4.0)