Plate P1. Magnification = 1800x unless specified otherwise. PH = phase-contrast light, XPL = cross-polarized light, SEM = scanning electron microscope. 1–4. Emiliania huxleyi; (1) Sample 189-1168A-2H-1, 90–91 cm, XPL; (2, 3) Sample 189-1171A-1H-2, 15–16 cm, (2) XPL, (3) PH; (4) Sample 189-1171A-2H-2, 90–91 cm, XPL. 5. Pseudoemiliania lacunosa (Sample 189-1168A-1H-4, 90–91 cm, XPL). 6. Pseudoemiliania lacunosa ovata (Sample 189-1170A-2H-5, 15–16 cm, XPL). 7, 13. Rhabdosphaera clavigera (Sample 189-1168A-1H-5, 90–91 cm); (7) PH, (13) XPL. 8. Reticulofenestra asanoi (Sample 189-1171A-2H-5, 90–91 cm, PH). 9. Gephyrocapsa oceanica (Sample 189-1170A-4H-6, 60–61 cm, XPL). 10. Heliocosphaera sellii (Sample 189-1170A-5H-4, 60–61 cm, XPL). 11, 12. Helicosphaera sellii (Sample 189-1168A-CC); (11) PH, (12) XPL. 14, 15. Pontosphaera indoceanica (Sample 189-1171A-2H-2, 90–91 cm); (14) XPL, (15) PH. 16. Calcidiscus macintyrei (Sample 189-1171A-4H-1, 90–91 cm, XPL). 17. Discoaster brouweri (Sample 189-1172A-1H-CC, PH). 18. Sphenolithus abies (Sample 189-1168A-2H-2, 15–16 cm, XPL) (750x). 19. Gephyrocapsa sp. <4 µm (Sample 189-1172A-1H-1, 117–118 cm) (SEM). 20. Emiliania huxleyi (Sample 189-1168A-1H-1, 15–16 cm) (SEM).