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Título: Current situation of the ichnological locality of São Domingos from the Corda Formation (Lower Cretaceous), northern Tocantins state, Brazil
Autor(es): de Valais, Silvina
Candeiro, Carlos Roberto A.
Tavares, Lanuze Fabielly
Alves, Yuri Modesto
Cruvinel, Clovis
Fecha de publicación: 2015
Editorial: Elsevier Science
Citación: De Valais, S., Candeiro, C. R., Tavares, L. F., Alves, Y. M. and Cruvinel, C. (2015). Current situation of the ichnological locality of São Domingos from the Corda Formation (Lower Cretaceous), northern Tocantins State, Brazil. Journal of South American Earth Sciences; 61; 142-146.
Revista: Journal of South American Earth Sciences
Abstract: In the 80's, Leonardi treated the presence of a vertebrate ichnological locality from the Barremian Corda Formation, Parnaíba Basin, on the left bank of the Tocantins river, near of the Sao Domingos town, Ita- ~ guatins, State of Tocantins, Brazil. Originally, the record was composed of at least seven in situ trackways, accounting for fifty six tracks. Since 2011, the Hydroelectric Power Plant do Estreito has begun to work, causing the development of a water reservoir 160 km upstream to the ichnological site, causing periodic and highly energetic floods over the footprints-bearing level and altering it. The imprints are poorly to moderate preserved, but it is possible to distinguish the general morphology and the spatial arrangement of the footprints. The specimens are represented by pes imprints, mostly circular to subcircular, with no digital and claw impressions. No distinguishable manus imprints are present. The trackways are relative narrow with respect to the size of the tracks, so they are considered into the Parabrontopodus-like category. The S~ ao Domingos tracks have been originally assigned to iguanodontid dinosaurs, and posteriorly related to a sauropodian origin. This idea is herein accepted, particularly to a basal sauropod, basal macronarians, or diplodocoids. Up to date, the tracks from the Sao Domingos locality are the only ~ vertebrate fossil record from the Corda Formation, meaning an important contribution to the Cretaceous ichnofauna from South America.
Resumen: -
URI: https://www.sciencedirect.com/science/article/pii/S0895981114001357?via%3Dihub
http://rid.unrn.edu.ar/handle/20.500.12049/5874
Identificador DOI: https://doi.org/10.1016/j.jsames.2014.09.023
ISSN: 0895-9811
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