Plate P1. Light micrography: XP = cross-polarized light, PL = plain transmitted light. Scale bar = 5 µm. 1. Discoaster quinqueramus (Sample 177-1088B-8H-1, 140 cm); PL. 2. Discoaster quinqueramus (Sample 177-1088B-8H-1, 70 cm); PL. 3, 4. Coccolithus miopelagicus (Sample 177-1088C-9H-2, 140 cm); (3) XP and (4) PL. 5, 6. Reticulofenestra rotaria (Sample 177-1088B-8H-5, 140 cm); (5) XP and (6) PL. 7. Amaurolithus delicatus (Sample 177-1088B-9H-1, 140 cm); PL. 8. Discoaster asymmetricus (Sample 177-1088B-5H-4, 140 cm); PL. 9. Discoaster tamalis (Sample 177-1090B-8H-1, 30 cm); PL. 10, 11. Reticulofenestra sp. (Sample 177-1088B-6H-7, 12 cm); (1) PL and (11) XP. 12. Amaurolithus tricorniculatus (Sample 177-1088B-8H-1, 70 cm); PL. 13, 14. Reticulofenestra sp. (Sample 177-1088B-6H-5, 70 cm); (13) XP and (14) PL. 15, 16. Calcidiscus macintyrei (Sample 177-1088C-11X-3, 70 cm); (15) PL and (16) XP. 17, 18. Helicosphaera granulata (Sample 177-1088C-13X-7, 20 cm); (17) XP and (18) PL. 19. Discoaster brouweri (Sample 177-1090B-8H-1, 30 cm); PL.