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dc.contributor.author
Forasiepi, Analia Marta
dc.contributor.author
Coria, Rodolfo Anibal
dc.contributor.author
Hurum, J.
dc.contributor.author
Currie, P.J.
dc.date.available
2019-03-13T19:42:52Z
dc.date.issued
2012-12
dc.identifier.citation
Forasiepi, Analia Marta; Coria, Rodolfo Anibal; Hurum, J.; Currie, P.J.; First dryolestoid (Mammalia, Dryolestoidea, Meridiolestida) from the Coniacian of Patagonia and new evidence on their early radiation in South America; Asociacion Paleontologica Argentina; Ameghiniana; 49; 4; 12-2012; 497-504
dc.identifier.issn
0002-7014
dc.identifier.uri
http://hdl.handle.net/11336/71525
dc.description.abstract
We report on a new dryolestoid (Mammalia, Dryolestoidea, Meridiolestida) from the Los Bastos Formation (Coniacian), Neuquén Province, Patagonia, Argentina, consisting of an edentulous left: dentary (MCF-PVPH 412). The alveoli preserved suggest the presence of three incisors, one double-rooted canine, and six double-rooted postcanines (probably three premolars and three molars). Based on comparisons with previously known dentaries and isolated teeth, MCF-PVPH 412 would have been about the same size as Reigitherium Bonaparte. Among Dryolestoidea, MCF-PVPH 412 is assigned to Meridiolestida because there were probably three molars, the roots of the posterior molars are anteroposteriorly compressed, and there is no Meckelian groove. In addition, the penultimate lower premolar would be the largest in the tooth series, which is also true in other meridiolestidans. The position of the mandibular foramen, the probable presence of three premolars, and the outline of the posteroventral part of the jaw suggest affinities with the Mesungulatoidea (e.g., Coloniatherium Rougier, Forasiepi, Hill and Novaceck; Peligrotherium Bonaparte, Van Valen and Kramarz; and Reigitherium). The Coniacian specimen represents the oldest Mesungulatoidea and fills the gap in the record between the oldest South American dryolestoid (i.e., Cenomanian) and the better known Campanian-Maastrichtian taxa. The discovery of MCF-PVPH 412 in the Coniacian of Patagonia is consistent with the dryolestoid diversification during the Late Cretaceous that makes them the most abundant mammals during that period in South America.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Asociacion Paleontologica Argentina
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Late Cretaceous
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Mammalia
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Mesozoic
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Patagonia
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South America
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Meteorología y Ciencias Atmosféricas
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Ciencias de la Tierra y relacionadas con el Medio Ambiente
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CIENCIAS NATURALES Y EXACTAS
dc.title
First dryolestoid (Mammalia, Dryolestoidea, Meridiolestida) from the Coniacian of Patagonia and new evidence on their early radiation in South America
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2019-02-06T17:39:04Z
dc.identifier.eissn
1851-8044
dc.journal.volume
49
dc.journal.number
4
dc.journal.pagination
497-504
dc.journal.pais
Argentina
dc.journal.ciudad
Buenos Aires
dc.description.fil
Fil: Forasiepi, Analia Marta. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Museo de Historia Natural de San Rafael - Ianigla | Provincia de Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Museo de Historia Natural de San Rafael - Ianigla | Universidad Nacional de Cuyo. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Museo de Historia Natural de San Rafael - Ianigla; Argentina
dc.description.fil
Fil: Coria, Rodolfo Anibal. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Provincia del Neuquén. Municipalidad de Plaza Huincul. Museo "Carmen Funes"; Argentina
dc.description.fil
Fil: Hurum, J.. University of Oslo; Noruega
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Fil: Currie, P.J.. University of Alberta; Canadá
dc.journal.title
Ameghiniana
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://dx.doi.org/10.5710/AMGH.8.8.2012.581
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://bioone.org/journals/ameghiniana/volume-49/issue-4/AMGH.8.8.2012.581/First-Dryolestoid-Mammalia-Dryolestoidea-Meridiolestida-from-the-Coniacian-of-Patagonia/10.5710/AMGH.8.8.2012.581.short


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