NEW BIOSTRATIGRAPHIC PROPOSAL FOR THE LOWER PALAEOZOIC TUCUNUCO GROUP (SAN JUAN PRECORDILLERA, ARGENTINA) BASED ON MARINE AND TERRESTRIAL PALYNOMORPHS. AMGH. 2014;52(2):265-285. Accessed September 15, 2025. https://www.ameghiniana.org.ar/index.php/ameghiniana/article/view/2813