Wheeley et al. Supplementary material			

Graph A. Plot of the ranges in δ18O for all conodont analyses as listed in Table 1 against the number of times each has been analysed. Graph B. Plot of the standard error of the mean (SEM) for all conodont δ18O determinations as listed in Table 1 against the number of times each has been analysed. 

									

									

Graph A	

									

									

									

									

									

Graph B