“REEVALUATION OF TETRAGRAPTUS PHYLLOGRAPTOIDES AND T. AKZHARENSIS BIOZONES (LOWER ORDOVICIAN, FLOIAN) FROM THE CORDILLERA ORIENTAL ARGENTINA”, AMGH, vol. 50, no. 3, pp. 287 – 297, Jul. 2013, Accessed: Sep. 15, 2025. [Online]. Available: https://www.ameghiniana.org.ar/index.php/ameghiniana/article/view/541