Sánchez, M. L., and S. Heredia. “Sedimentary Paleoenvironments in the Upper Cretaceous Plottier Formation (Neuquen Group), Confluencia, Neuquén”. Revista De La Asociación Geológica Argentina, vol. 61, no. 1, Jan. 2006, pp. 39-56, https://revista.geologica.org.ar/raga/article/view/1059.