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dc.contributor.author
Díaz Martínez, Ignacio
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dc.contributor.author
de Valais, Silvina
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dc.contributor.author
Cónsole Gonella, Carlos Alfredo
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dc.date.available
2017-12-18T15:29:08Z
dc.date.issued
2017-09-25
dc.identifier.citation
New sauropod tracks from the Yacoraite Formation (Maastrichtian?Danian), Valle del Tonco tracksite, Salta, northwestern Argentina; Springer; Journal of Iberian Geology; 25-9-2017; 1-15
dc.identifier.issn
1698-6180
dc.identifier.uri
http://hdl.handle.net/11336/30870
dc.description.abstract
Purpose A relative long sauropod trackway and hundreds of varied indeterminate dinosaur tracks, many of them probably related to ornitischians, were found many years ago in the Valle del Tonco tracksite (Salta, northwestern Argentina). This sauropod trackway is now described and analyzed in an updated context.Methods Ichnological analyses were mainly conducted during fieldwork. Fossiliferous surface was mapped and digitalized in order to recognize the track shape and their distribution.Results The trackway-bearing surface belongs to an inverted section from the uppermost Cretaceous Caliza Amblayo Member, the lower unit of the Yacoraite Formation in this area. The sauropod trackway is moderate to poorly-preserved and includes twelve manus?pes imprint sets as convex hyporelief (natural casts). The heteropody is high and the PTR index indicates a medium category forthe trackway gauge. The pes tracks, longer than wide, have subtriangular posterior edge and a general rhomboidal shape, lacking a lateral notch, and the digit-claw traces are laterally located. The manus tracks are subrounded torectangular with at least two short, posteriorly oriented digit imprints.Conclusions Their main features and preservation/weathering do not allow a precise assignment to a particular ichnotaxon. Taking into account the best-preserved Campanian?Maastrichtian sauropod pes tracks, two differentgeneral shapes can be differentiated: the Campanian Humaca shape (Bolivia) and the Maastrichtian Fumanya shape (Spain). The Valle del Tonco pes prints show similarities with the Fumanya shape. The presence of two pes track shapes in this age suggests that at least two different titanosaur feet morphology were present in the uppermost Cretaceous.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Springer
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Sauropod Trackway
dc.subject
Caliza Amblayo Member
dc.subject
Uppermost Cretaceous
dc.subject
South America
dc.subject.classification
Meteorología y Ciencias Atmosféricas
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dc.subject.classification
Ciencias de la Tierra y relacionadas con el Medio Ambiente
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
New sauropod tracks from the Yacoraite Formation (Maastrichtian?Danian), Valle del Tonco tracksite, Salta, northwestern 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
2017-12-15T14:32:11Z
dc.identifier.eissn
1886-7995
dc.journal.pagination
1-15
dc.journal.pais
Alemania
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dc.journal.ciudad
Berlin
dc.description.fil
Fil: Díaz Martínez, Ignacio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigación en Paleobiología y Geología; Argentina
dc.description.fil
Fil: de Valais, Silvina. Universidad Nacional de Río Negro. Sede Alto Valle. Instituto de Investigaciones en Paleobiología y Geología; Argentina
dc.description.fil
Fil: Cónsole Gonella, Carlos Alfredo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Tucumán. Instituto Superior de Correlación Geológica. Grupo Vinculado al INSUGEO- Centro de Estudios Geologicos Andinos; Argentina
dc.journal.title
Journal of Iberian Geology
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1007/s41513-017-0035-1
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007%2Fs41513-017-0035-1
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