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dc.contributor.author
Bogan, Sergio  
dc.contributor.author
Agnolin, Federico  
dc.contributor.author
Novas, Fernando Emilio  
dc.date.available
2017-06-05T16:28:33Z  
dc.date.issued
2016-05  
dc.identifier.citation
Bogan, Sergio; Agnolin, Federico; Novas, Fernando Emilio; New selachian records from the Upper Cretaceous of southern Patagonia: Paleobiogeographical implications and the description of a new taxon; Society Of Vertebrate Paleontology; Journal Of Vertebrate Paleontology; 36; 3; 5-2016  
dc.identifier.issn
0272-4634  
dc.identifier.uri
http://hdl.handle.net/11336/17487  
dc.description.abstract
We describe isolated shark teeth collected in levels of the Calafate Formation (Maastrichtian, Late Cretaceous) on the southeast coast of Argentino Lake, Calafate City, Santa Cruz Province, Argentina. The teeth belong to the hexanchiform Notidanodon dentatus, a new species of the squaliform Protosqualus, and an indeterminate species of the echinorhiniform genus Echinorhinus. The record of Notidanodon constitutes the first in South America. The report of Notidanodon associated with plesiosaur remains is in accordance with previous records from around the world. Protosqualus argentinensis, nov. Sp., which is the first record of the genus in South America, is characterized by having teeth with a apicobasally tall root and serrated cutting edges, among other features. Echinorhinus sp. constitutes one of the oldest records of this genus on the continent and one of the few Mesozoic records worldwide. This shark association is clearly distinct from coeval selachian faunas from northern Patagonia, which exhibit clear Tethyan influences. Instead, it shows some similarities to other high-latitude selachian faunas, including Australia, New Zealand, and Antarctica. It is possible that the Cretaceous selachian assemblages of Patagonia may be separated into two different associations: northern Patagonian faunas are related to more temperate associations of lower paleolatitudes, whereas those of southern Patagonia are closer to other southern localities.  
dc.format
application/pdf  
dc.language.iso
eng  
dc.publisher
Society Of Vertebrate Paleontology  
dc.rights
info:eu-repo/semantics/openAccess  
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/  
dc.subject
Protosqualus Argentinensis  
dc.subject
Notidanodon Dentatus  
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Echinorhinus  
dc.subject.classification
Paleontología  
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Ciencias de la Tierra y relacionadas con el Medio Ambiente  
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CIENCIAS NATURALES Y EXACTAS  
dc.title
New selachian records from the Upper Cretaceous of southern Patagonia: Paleobiogeographical implications and the description of a new taxon  
dc.type
info:eu-repo/semantics/article  
dc.type
info:ar-repo/semantics/artículo  
dc.type
info:eu-repo/semantics/publishedVersion  
dc.date.updated
2017-06-05T14:49:35Z  
dc.journal.volume
36  
dc.journal.number
3  
dc.journal.pais
Estados Unidos  
dc.description.fil
Fil: Bogan, Sergio. Universidad Maimonides; Argentina  
dc.description.fil
Fil: Agnolin, Federico. Universidad Maimonides; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; Argentina  
dc.description.fil
Fil: Novas, Fernando Emilio. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; Argentina  
dc.journal.title
Journal Of Vertebrate Paleontology  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://dx.doi.org/10.1080/02724634.2016.1105235