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Boletín de la Sociedad Geológica Mexicana
versión impresa ISSN 1405-3322
Resumen
CALVO, Jorge Orlando y RIVERA, Cynthia. Dinosaur footprints on the west side of the Ezequiel Ramos Mexía dam and neighboring areas (Upper Cretaceous, Neuquén province, Argentina). Bol. Soc. Geol. Mex [online]. 2018, vol.70, n.2, pp.449-497. ISSN 1405-3322. https://doi.org/10.18268/bsgm2018v70n2a11.
In Argentina, some of the most important dinosaur tracksites are found on the west coast of the Ezequiel Ramos Mexía reservoir, in the Neuquén province. In the last 30 years, more than 100 km of coastline have yielded hundreds of dinosaur tracks. The tracks are part of the Albian?-lower Cenomanian Candeleros Formation, Neuquén Group. An extensive study and review of the dinosaur tracks described in the past 30 years is reinterpreted and revised. Candeleroichnus canalei ichnogen. nov. ichnosp. nov. is described. A neotype is chosen for Deferrariischnium mapuchensis Calvo, 1991 and an emended diagnosis improves the ichnospecies. In addition, new information of the trackway diagnosis of Picunichnus benedettoi Calvo, 1991, such as length of pace and pace angle is given. We analyze all the dinosaur sites discovered until now and we identify all described ichnoforms such as Sousaichnium monettae, Limayichnus major, Abelichnus astigarrae and Sauropodichnus giganteus. We include unpublished figures, photos and tables of the ichnotypes.
Palabras llave : Tracks; Dinosauria; Theropoda; Sauropoda; Patagonia; Cretaceous.