The research activity of the GI-PVC (Cenozoic Vertebrate Paleontology Research Group) focuses on the study of seven major lines of research: 1) Cenozoic Macrovertebrates (Betic Basins and Iberian Mountains). 2) Study of the Mio-Pliocene transit in continental facies in the Valencian Community. 3) Study of the faunas of the lower Miocene and middle Miocene of the Eastern Iberian Peninsula. 4) Study of the faunas of the Tertiary and Quaternary of Ecuador. 5) Isotopic analysis of fossil remains of small mammals. 6) Application of GIS tools (Geographic Information Systems-spatial analysis) in paleoclimatic and paleoenvironmental reconstruction based on microvertebrate fossil remains. 7) Combined application of GIS tools (Geographic Information Systems-spatial analysis) and Image Analysis in the study of shape in Paleontology. The object of study of the seven lines of research referred to above are the fossil remains of vertebrates (mammals, reptiles, amphibians) from the Cenozoic of Europe, and especially from the Iberian Peninsula, as well as from the same period of time in the central and western regions. from Ecuador. In both geographical contexts, the aim is to address the detailed paleontological study of this type of remains from the different subdisciplines of Paleontology (Taphonomy, Systematics, Biostratigraphy, Biogeography, Paleoecology, Study of shape, etc.). The main areas of study are the Tertiary and Quaternary basins of the Iberian and Betic Domains in the Iberian Peninsula, and the areas with Eocene-Quaternary deposits of central and western Ecuador. The Iberian Peninsula is a region where a large number of paleontological works on Cenozoic vertebrate faunas are recorded. Thus, since the middle of the last century, a large number of researchers from Europe and other latitudes have selected the Iberian basins as the preferred place to study this type of fossil. The magnificent exposure of the outcrops and the large paleontological record found contributed to considering this area as the main source of paleontological information on Cenozoic vertebrates in Europe. As a result of these works, the Spanish School of Vertebrate Paleontologists arose, which over the years has become the largest and most powerful in our continent. Our efforts are aimed at completing the large number of works in Vertebrate Paleontology already existing in these basins, and especially to complement the few works that have been carried out in the East of the Peninsula and which, as our latest works show, contain very relevant information that contrasts with the results of other peninsular areas and the rest of the of Europe. Our results allow verifying significant differences in the paleontological record of Cenozoic vertebrates, as well as the discovery of new events of paleoenvironmental changes so far not recorded in other study areas. In addition to delving into studies that complement existing information from other areas, Our team develops its research work on other fronts with a view to creating new approaches to understanding the paleoenvironmental conditions of the most recent past (Pleistocene-Holocene) and their relationship with the climate change processes that have occurred in this period of time. On the other hand, although closely related to this last point, we develop new spatial analysis applications to manage environmental-climatic and biogeographic information that allow us to address the process of paleoclimatic reconstruction of the recent past. Based on these new applications, for example, we analyze the extinction context of the last Neanderthal groups based on the Pleistocene microvertebrate record.