Fig. 4

C-isotope correlation of the Tojeira-1 section with a Boreal organic and carbonate carbon record stack (Dorset, Morgans-Bell et al. 2001; Scotland, Nunn et al. 2009; Russia, Riboulleau et al. 1998; Price and Rogov 2009) and a Tethyan δ ¹³C_carb stack from Price et al. (2016). See Price et al. (2016) for a full list of references and details on the sections they included. Of the Price et al. (2016) stack, the Gorges du Pichoux, Swiss Jura record was not included due to δ ¹³C interference from localised factors, and as the Lókút Hill section had very few data points for the Early Kimmeridgian to interpret meaningful shifts, the record was not included in the Tethyan stack here