Bolz, Angela, y Claudio Calvo. «Carbonate Platform Development in an Intraoceanic Arc Setting: Costa Rica’s Largest Limestone Sequence - The Fila De Cal Formation (Middle Eocene to Lower Oligocene)». Revista geológica de América central 58 (abril 17, 2018). Accedido octubre 14, 2024. https://revistas.ucr.ac.cr/index.php/geologica/article/view/32845.