Eocene Plant Diversity at Laguna del Hunco and Río Pichileufú, Patagonia, ArgentinaDOI: info:10.1086/430055v. 165No. 6634–650
Wilf, Peter, Johnson, Kirk R., Cúneo, N. Rubén, Smith, M. E., Singer, Bradley S, and Gandolfo, Maria A. 2005. "Eocene Plant Diversity at Laguna del Hunco and Río Pichileufú, Patagonia, Argentina." American Naturalist, 165, (6) 634–650. https://doi.org/10.1086/430055.