Oceanic anoxic events represent global crisis periods for the planet Earth. The main characteristics of these relatively short-lived episodes, from a geological perspective, include stratification and a decline in oxygen levels of the marine water column. The initial cause is massive volcanic eruptions, while the direct consequences include the extinction of certain groups of organisms and the evolution of a range of new plant and animal species. The GEACAP project focuses on three principal anoxic events that have left measurable and proven imprints (geochemical, biological, lithological) in the paleo-environments of the shallow-marine former Adriatic Carbonate Platform: the Toarcian anoxic event (T-OAE), the Oceanic Anoxic Event OAE2 (Bonarelli), and the Oceanic Anoxic Event OAE3. The specificity of global anoxia in the shallow marine deposits of the former Adriatic Carbonate Platform is characterised by organic-rich intervals with a negative deviation in the concentration ratio of stable carbon isotopes, a sharp boundary marking the extinction of certain organisms, and facies changes.