Skip navigation
Por favor, use este identificador para citar o enlazar este ítem:

Título: New sauropod tracks from the Yacoraite Formation (Maastrichtian–Danian), Valle del Tonco tracksite, Salta, northwestern Argentina
Autor(es): Díaz Martínez, Ignacio
de Valais, Silvina
Cónsole Gonella, Carlos Alfredo
Fecha de publicación: 2017
Editorial: Springer
Citación: Díaz-Martínez, I., de Valais, S. & Cónsole-Gonella (2017). New sauropod tracks from the Yacoraite Formation (Maastrichtian–Danian), Valle del Tonco tracksite, Salta, northwestern Argentina. Journal of Iberian Geology; Springer; 44; 113-127
Revista: Journal of Iberian Geology
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.
Resumen: -
Identificador DOI:
ISSN: 1698-6180
Aparece en las colecciones: Artículos

Archivos en este ítem:
Archivo Descripción Tamaño Formato  
Diaz-Martinez et al 2017-New sauropod tracks from Yacoraite Fm.pdf
  Hasta el 01-01-2024
8,3 MBAdobe PDF    Solicitar una copia

Este documento es resultado del financiamiento otorgado por el Estado Nacional, por lo tanto queda sujeto al cumplimiento de la Ley N° 26.899

Este ítem está sujeto a una licencia Creative Commons Licencia Creative Commons Creative Commons