“A WIDESPREAD, NEARLY MONOSPECIFIC SILICIFIED COCCOIDAL MICROBIOTA FROM THE PERMIAN OF BRAZIL (ASSISTÊNCIA FORMATION, IRATI SUBGROUP, PARANÁ BASIN)”. Ameghiniana 57, no. 4 (August 31, 2020): 302–326. Accessed October 1, 2025. https://ameghiniana.org.ar/index.php/ameghiniana/article/view/3331.