Annual Report 2005 of the Rupelian/Chattian Boundary Stratotype Working Group

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” by Coccioni and others, submitted to the Geological Society of American Bulletin for publication, was peer-reviewed. The first author and few co-authors are presently preparing the final manuscript to be resubmitted to the GSA Bulletin for acceptance.
The revision of the manuscript delaied considerably the preparation of the formal proposal designating the Monte Cagnero (MCA) section, out of the three sections studied, as GSSP for the Rupelian/Chattian boundary.

Tasks of the Italian scientific community were to search for GSSPs of the Middle-Upper Eocene and Lower-Upper Oligocene Transitions. Investigations on Middle-Upper Eocene and Lower-Upper Oligocene Transitions. tasks of the Italian scientific community, have been undertaken by a number of researchers from several Italian Universities and CNR Institutes (i.e. Padua, Ferrara, Urbino, Milan), as well as from some European and USA Universities and Institutions of the “ALANO NET” and by the numerous scientists of the OLIS Working Group coordinated by Rio (University of Padua) and Coccioni (University of Urbino), respectively.

Report by Isabella Premoli Silva, Chairwoman.