Leanza, H. A., Volkheimer, W., Hugo, C. A., Melendi, D. L. and Rovere, E. I. (2002) “Lacustrine black shales near to the Paleogene - Neogene boundary in north-western Neuquén Province: palynological evidence”, Revista de la Asociación Geológica Argentina, 57(3), pp. 280-288. Available at: https://revista.geologica.org.ar/raga/article/view/736 (Accessed: 23November2024).