Supplement to: Butler, Paul G; Richardson, Christopher A; Scourse, James D; Witbaard, Rob; Schöne, Bernd R; Fraser, Nicole M; Wanamaker, Alan D; Bryant, Charlotte L; Harris, Ian; Robertson, Iain (2009): Accurate increment identification and the spatial extent of the common signal in five Arctica islandica chronologies from the Fladen Ground, northern North Sea. Paleoceanography, 24(2), PA2210, https://doi.org/10.1029/2008PA001715