Figure 7. Time series of (A) diatom valves, (B) high-productivity species Chaetoceros spp. (resting spores) and Thalassionema nitzschioides, (C) nearshore species Stephanopyxis turris, and (D) cold-water species Neodenticula spp. (N. kamtschatica, N. koizumii, and N. seminae) at Site 1018. Shaded lines show datum levels recognized in this work. LO = last occurrence, FO = first occurrence.

Figure 7. Time series of (A) diatom valves, (B) high-productivity species Chaetoceros spp. (resting spores) and Thalassionema nitzschioides, (C) nearshore species Stephanopyxis turris, and (D) cold-water species Neodenticula spp. (N. kamtschatica, N. koizumii, and N. seminae) at Site 1018. Shaded lines show datum levels recognized in this work. LO = last occurrence, FO = first occurrence.