Neurograptus cf. N. margaritatus (Lapworth) (Graptolithina) en la sierra de La Invernada (Ordovícico), Precordillera de San Juan, Argentina. AMGH. 2014;36(1):49-54. Accessed September 25, 2025. https://ameghiniana.org.ar/index.php/ameghiniana/article/view/2473