Kate Littler (a), Melanie Leng (b), Claudia Agnini (c), James C. Zachos (d), Thomas Westerhold (e) & Ursula Röhl (e)
(a) Camborne School of Mines, University of Exeter, Penryn Campus, Penryn, Cornwall TR10 9FE, UK. E-mail: k.littler@exeter.ac.uk
(b) NERC Isotope Geosciences Laboratory, British Geological Survey, Nicker Hill, Keyworth, Nottingham NG12 5GG, UK.
(c) Dipartimento di Geoscienze, Università degli Studi di Padova, Via Giovanni Gradenigo 6, 35131 Padova, Italy.
(d) Department of Earth and Planetary Sciences, University of California Santa Cruz, 1156 High Street, Santa Cruz, CA 95064, USA.
(e) MARUM, University of Bremen, Leobener Strasse, 28359 Bremen, Germany.