PALYNOLOGICAL STUDY OF THE PUNTA DEL BARCO FORMATION, LOWER CRETACEOUS OF SANTA CRUZ PROVINCE, ARGENTINA. SYSTEMATIC DESCRIPTIONS I: MONOLETE AND SMOOTH AND CINGULATE TRILETE SPORES. (2008). Ameghiniana, 45(1), 153-166. https://ameghiniana.org.ar/index.php/ameghiniana/article/view/214