Alegret, L. and Meléndez, A. 2006. The Cretaceous/Paleogene boundary event in the deep sea: inferences from the Caribbean and the Gulf of Mexico. Anuário do Instituto de Geociências. 29, 1 (Jan. 2006), 473–476. DOI:https://doi.org/10.11137/2006_1_473-476.