1. Almy, C. C., Jr., 1969, Sedimentation and tectonism in the upper Cretaceous Puerto Rican portion of the Caribbean island arc, Gulf Coast Assoc. Geol Soc. Trans.
19:269–279.
2. Alvarez, W., 1972, Fragmented Andean belt of northern Colombia, Geol. Soc. Am. Memoir
130:77–96.
3. Anderson, T. H., and Schmidt, V. A., 1983, The evolution of Middle America and the Gulf of Mexico-Caribbean Sea during Mesozoic time, Geol. Soc. Am. Bull.
94:941–966.
4. Arden, D. D., Jr., 1975, Geology of Jamaica and the Nicaragua Rise, in: The Ocean Basins and Margins, Volume 3, The Gulf of Mexico and the Caribbean (A. E. M. Nairn and F. G. Stehli, eds.), Plenum Press, New York, pp. 617–662.
5. Azéma, J., Sornay, J., and Tournon, J., 1979, Découverte d’Albien supérieur à ammonites dans le matérial volcano- sédimentaire du “complexe de Nicoya” (Province de Guanacaste, Costa Rica), C. R. Somm. Soc. Geol. Fr.
3:129–131.