Annual Report 2011 of the Rupelian/Chattian Boundary Stratotype Working Group

The formal proposal of the GSSP for the Rupelian/Chattian boundary at the Monte Cagnero section (Umbria-Marche basin, NE Apennines, Italy) is in progress under the leadership of R. Coccioni and A. Montanari, two of the co-authors of the published paper in which the proposal was put forward.

Report by Isabella Premoli Silva, Chairwoman.