Estimates are subjective, but reproducible to nearest major category and based on examination of several thousand to several tens of thousands of radiolarians/sample. Diatoms, radiolarian, and silicoflagellate abundance as % total coarse fraction. Radiolarian species as % of radiolarian assemblage. VA = very abundant, >90% of total; A = abundant, 20%-50 1 specimen but 63 µm.