1. Department of Earth and Environmental Sciences, University of Milano-Bicocca, Italy
2. Laboratory of Palynology and Palaeoecology, Institute for the Dynamics of Environmental Processes (IDPA), Consiglio Nazionale delle Ricerche (CNR), Italy
3. Department for the Cultural Heritage, University of Bologna, Italy
4. Institute of Atmospheric Sciences and Climate (ISAC), Consiglio Nazionale delle Ricerche (CNR), Italy