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[dinosaur] Dinosaur tracks from Upper Cretaceous, NeuquÃn Province, Argentina (free pdf)




Ben Creisler
bcreisler@gmail.com

A new paper in open access:


Jorge O. Calvo & Cynthia Rivera (2018)
Huellas de dinosaurios en la costa oeste del embalse Ezequiel Ramos MexÃa y alrededores (CretÃcico Superior, Provincia de NeuquÃn, RepÃblica Argentina)
Dinosaur footprints on the west side of the Ezequiel Ramos MexÃa dam and neighboring areas (Upper Cretaceous, NeuquÃn province, Argentina).
BoletÃn de la Sociedad GeolÃgica Mexicana 70(2): 449 â 497
doi: http://dx.doi.org/10.18268/BSGM2018v70n2a11
http://boletinsgm.igeolcu.unam.mx/bsgm/index.php/component/content/article/372-sitio/articulos/cuarta-epoca/7002/1945-7002-11-calvo

Free pdf:
http://boletinsgm.igeolcu.unam.mx/bsgm/vols/epoca04/7002/%2811%29Calvo.pdf



In Argentina, some of the most important dinosaur tracksites are found on the west coast of the Ezequiel Ramos MexÃa reservoir, in the NeuquÃn 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, NeuquÃn 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 We include unpublished figures, photos and tables of the ichnotypes.

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