DICHOGRAPTUS FASCICULATUS NOV. SP. (GRAPTOLITHINA) EN LA FORMACION GUALCAMAYO (ORDOVICICO), PRECORDILLERADE SAN JUAN, REPUBLICA ARGENTINA. AMGH. 2013;31(1):67-71. Accessed September 23, 2025. https://ameghiniana.org.ar/index.php/ameghiniana/article/view/2190