“Stratigraphic Implications of Latest Middle Miocene to Earliest Late Miocene Diatoms in the Navidad Formation at Lo Abarca, Central Chile (33° 30’S)”. Ameghiniana, vol. 47, no. 4, Feb. 2011, pp. 527-33, https://ameghiniana.org.ar/index.php/ameghiniana/article/view/286.