Abstract
Quarries are areas of pivotal importance for investigation, popularization, and educational purposes in the field of geosciences. Here, we focus on three quarries of Tuscany (La Serra, Arcille, and Certaldo) that have been home to significant finds of marine vertebrate fossils. The three selected localities are representative of the many active (La Serra), inactive (Arcille), and abandoned (Certaldo) Tuscan quarries where vertebrate-bearing Pliocene deposits are exposed. Given the richness and scientific value of their paleontological content (including holotypes as well as otherwise unique specimens), the abundance of exposed sedimentary structures, and the high potential for open-air musealization, the La Serra, Arcille, and Certaldo quarries should be regarded as geosites. These quarries are thoroughly described, and several suggestions for their preservation and valorization are proposed, focusing on their importance for geotourism, with the goal of reaching out to the broadest audience possible. Many innovative dissemination tools, including 3D technologies, are now available for pursuing such an aim.