Aitor Payros is a lecturer at the University of the Basque Country (UPV/EHU). Since 1991 his research has embraced Paleogene stratigraphy, sedimentology, paleogeography and paleoclimatology in the Pyrenean area, but his interest has also extended to other regions and intervals of the geological record, especially the environmental impact of past climate change episodes on deep marine deposits. His work has contributed to the definition of several Paleogene Global Stratotype Sections and Points. In 2015 he was awarded the ICS Medal of the international Commission on Stratigraphy for his work in Eocene biomagnetostratigraphic calibrations.