 He has worked with the American Museum of Natural History to discover and excavate Miocene vertebrates at the paleontological site of Domo de Zaza and other localities in Cuba, Haiti, Dominican Republic, Jamaica and Puerto Rico.He also conducted studies on the Quaternary megafauna discovered in Cuba and various remains of terrestrial vertebrates such as sloths, rodents, birds, reptiles and other prehistoric animals.His work in paleontology, stratigraphy, biogeography, palaeogeography and plate tectonics are summarized in the Red Cubana de la Ciencia website.