Thomas Westerhold (a), Ursula Röhl (a), James C. Zachos (b) & Jaume Dinarès-Turell (c)
(a) MARUM, University of Bremen, Leobener Strasse, Bremen, Germany. E-mail: twesterhold@marum.de
(b) Department of Earth and Planetary Sciences, University of California Santa Cruz, CA 4, USA.
(c) Istituto Nazionale di Geofisica e Vulcanologia, Rome, Italy.