Figure 6. Depth ranges of key Pliocene-Quaternary planktonic foraminiferal zonal species and other stratigraphically useful taxa in Hole 1018A, California margin. California margin (CM) planktonic foraminiferal zones shown at left. Dashed line represents a range extension that is based on rare specimens.

Figure 6. Depth ranges of key Pliocene-Quaternary planktonic foraminiferal zonal species and other stratigraphically useful taxa in Hole 1018A, California margin. California margin (CM) planktonic foraminiferal zones shown at left. Dashed line represents a range extension that is based on rare specimens.