Figure 7. Sea surface temperature estimates (February = Blue, August = Red) for DSDP Holes 445 and 463 and ODP Hole 769, western North Pacific Ocean. Vertical black lines on each time series indicate modern winter and summer SST(¡C). Gray regions labeled “no analog” correspond to samples that have high SCD values and thus SST estimates are not considered reliable. PRISM time slab refers to the time interval between 3.15 Ma and 2.85 Ma (Geomagnetic Polarity Time Scale of Berggren et al., 1985). Error bars are ±1s.