The overall objectives are the paleontological, chronostratigraphical and paleoenvironmental research of the last 100 million years, focusing on the extinction events and paleoenvironmental reconstruction of Cretaceous, Tertiary and Quaternary, based on high resolution samplings and the study of microfossils (foraminifers) and macromammals.

At present the group is formed by the following researchers:
which belong to the Institute of Environmental Sciences (IUCA) and they constitute two teams: