Távora, Vladimir de Araújo, and Salustriano Bosco Reis. “Paleoinvertebrates and Paleoenvironments of the Pirabas Formation (Lower Miocene) at Aricuru Locality, Maracanã District, Pará State, Brazil”. Anuário do Instituto de Geociências 38, no. 1 (February 15, 2017): 31–39. Accessed December 9, 2025. https://revistas.ufrj.br/index.php/aigeo/article/view/7841.