Figure 4. Time series of (A) total abundance of diatom valves, (B) abundances of the major species, (C) abundances of subordinate species, (D) sedimentation rate, and (E) eustatic curve (Haq et al., 1987). Note the difference in the horizontal (abundance) scales of B and C. The age assignments for the eustatic curve are calibrated by Cande and Kent (1995). The eustatic curve of Haq et al. (1987) is modified by the recent paleomagnetic chronology of Cande and Kent (1995).