Lawrence Percival1,2,3,4,5,6, Hugh C. Jenkyns1,2,3,4,5,6, Tamsin A. Mather1,2,3,4,5,6, Alexander J. Dickson1,7,2,8,9,6, Sietske J. Batenburg1,7,2,8,9,6, Micha Ruhl1,7,2,8,9,6, Stephen P. Hesselbo, Richard S. Barclay, Ian Jarvis7,3,8,9,4,5, Stuart A. Robinson1,7,2,3,8,9,4,5,6, Lineke Woelders7,3,8,9,4,5
1Camborne School of Mines and Environment and Sustainability Institute, University of Exeter, Penryn Campus, Penryn, Cornwall TR10 9FE, United Kingdom
2Department of Earth Sciences, University of Oxford, South Parks Road, Oxford OX1 3AN, United Kingdom
3Department of Geography and Geology, Kingston University London, Penrhyn Road, Kingston upon Thames KT1 2EE, United Kingdom
4Institute of Earth Sciences, Ge ´opolis, University of Lausanne, CH-1015 Lausanne, Switzerland
5KU Leuven, Division of Geology, Department of Earth and Environmental Sciences, B-3001, Leuven, Belgium
6Smithsonian Institution, PO Box, 37012, MRC 121, Washington, D.C., 20013-7012, United States
7Department of Earth Sciences, Royal Holloway, University of London, Egham, Surrey TW20 0EX, United Kingdom
8Department of Geology, Trinity College Dublin, The University of Dublin, Dublin 2, Ireland
9Institute of Arctic and Alpine Research, University of Colorado Boulder, Boulder, Colorado, United States of America