Fig. 1.

Chronology and ostracode relative abundance data from ODP site 1055. (a) The planktonic foraminifera δ¹⁸O and its correlation to the well dated record of nearby core 39GGC (gray lines; SI Table 3). (b) Age model (open circles, AMS radiocarbon dates; filled circles, δ¹⁸O correlation-based age-control points). (c and d) Relative abundance of two dominant ostracode genera Krithe and Argilloecia. (e) Percentage of shallow-water taxa in total ostracodes. Gray plots, calculations based on raw ostracode census dataset; black plots, calculations based on three-point moving sum census dataset.