1 CONICET.
2 Subsecretaría de Cultura de Neuquén – Museo Carmen Funes, Av. Córdoba 55, 8318 Plaza Huincul, Neuquén, Argentina.
3 Inibioma–Museo de Geología y Paleontología, Universidad Nacional del Comahue, Buenos Aires 1400, 8300 Neuquén, Argentina.
4 Dinosaur Institute, Los Angeles County Museum of Natural History, Los Angeles, California.

The discovery of hundreds of megaloolithid-type egg-clutches (some including embryos of an indeterminate species of titanosaur sauropods) in several stratigraphical levels of the Late Cretaceous nesting site of Auca Mahuevo (Chiappe et al., 2005) unveiled important aspects of the reproductive behavior of sauropod dinosaurs and stimulated further work at other Patagonian dinosaur egg sites. In November of 2003, a join expedition of the National University of Comahue (Neuquén), the Museo Carmen Funes (Plaza Huincul) and the Museo de Lamarque (Lamarque) conducted fieldwork in several Late Cretaceous localities of Bajo Santa Rosa (center-north Río Negro Province, Argentina) bearing the remains of dinosaur eggs and other terrestrial vertebrates.

Coria, R. A., Salgado, L, and Chiappe, L. M., 2010. Multiple dinosaur egg-shell occurrence in an Upper Cretaceous nesting site from Patagonia. Ameghiniana 47 (1): 107-110.