Counts of each species by sample are presented in Table T1. The percentage of each environmental group is shown in Figure F1. Note that the total percentage accounted for by these groups is ~35%, so it is possible for them to covary, as well as be inversely related. In general, the percentages of warm and transition fauna are inversely related (though not statistically significant) to intermediate fauna, suggesting that these groups may be useful in reconstructing the upwelling history and latitudinal movement of the Angola-Benguela Current system.