“New late Tremadoc-early Arenig silicified brachiopods from the lower part of the San Juan Formation, Argentine Precordillera”, AMGH, vol. 40, no. 4, pp. 513–530, Apr. 2013, Accessed: Oct. 04, 2025. [Online]. Available: https://ameghiniana.org.ar/index.php/ameghiniana/article/view/980