Establishing the Lower-Middle Jurassic Boundary in the UNESCO Global Geopark Molina & Alto Tajo (Central Spain)

The Global Boundary Stratotype Section and Point (GSSP) of the Aalenian Stage (base of the Middle Jurassic), was established in Fuentelsaz (Central Spain) by the International Commission on Stratigraphy (ICS) of the International Union of Geological Sciences (LUGS) in 2000. This stratotype is one of the most important geosites of the Molina-Alto Tajo UNESCO Global Geopark. Since the declaration of the Geopark in 2015, several conservation and geotouristic initiatives have been developed for the GSSP, including its protection as Natural Monument.