Annual Report 2009 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 paper on “Integrated stratigraphy of the Oligocene pelagic sequence in the Umbria-Marche basin (Northeastern Apennines, Italy): A potential GSSP for the Rupelian/Chattian boundary”, published on the GSA Bulletin v. 120 in 2008.

Report by Isabella Premoli Silva, Chairwoman.