The Mercedes Formation is a Late Cretaceous (Campanian to Maastrichtian) geologic formation of the Norte Basin in Uruguay. Ichnofossils (such as Teisseirei, Uruguay and Monesichnus) and fossil dinosaur eggs have been reported from the formation.Weishampel et al., 2004, pp.517-607 The formation that reaches a thickness of about ,Tofalo et al., 2011, p.616 overlies the Guichón Formation and is overlain by the Asencio Formation.Tofalo et al., 2011, p.617
See also List of dinosaur-bearing rock formations List of stratigraphic units with dinosaur trace fossils Dinosaur eggs List of fossiliferous stratigraphic units in Uruguay
References
Bibliography
Further reading G. Faccio. 1994. Dinosaurian eggs from the Upper Cretaceous of Uruguay. In K. Carpenter, K. F. Hirsch & J. R. Horner (eds.), Dinosaur Eggs and Babies 47-55