Plate P9. Scale bar = 10 µm. 1, 2. Coronocyclus nitescens round (Sample 189-1170A-37X-1, 60 cm); (1) differential-interference contrast light (DIC); (2) polarized light (XP). 3, 4. Coronocyclus nitescens oval (Sample 189-1171C-19X-6, 15 cm); (3) DIC; (4) XP. 5, 6. Sphenolithus moriformis and Sphenolithus conicus (Sample 189-1168A-33X-4, 15 cm); (5) DIC; (6) XP. 7, 8. Scyphosphaera sp. (Sample 189-1172A-11H-7, 15 cm); (7) phase-contrast light (Ph); (8) XP. 9, 10. Sphenolithus compactus (Sample 189-1168A-44X-2, 120 cm); (9) DIC; (10) XP. 11, 12. Ilselithina fusa (11) Sample 189-1168A-48X-2, 2 cm (XP); (12) Sample 189-1168A-46X-7, 2 cm (XP).

Plate P9. Scale bar = 10 µm. 1, 2. Coronocyclus nitescens round (Sample 189-1170A-37X-1, 60 cm); (1) differential-interference contrast light (DIC); (2) polarized light (XP). 3, 4. Coronocyclus nitescens oval (Sample 189-1171C-19X-6, 15 cm); (3) DIC; (4) XP. 5, 6. Sphenolithus moriformis and Sphenolithus conicus (Sample 189-1168A-33X-4, 15 cm); (5) DIC; (6) XP. 7, 8. Scyphosphaera sp. (Sample 189-1172A-11H-7, 15 cm); (7) phase-contrast light (Ph); (8) XP. 9, 10. Sphenolithus compactus (Sample 189-1168A-44X-2, 120 cm); (9) DIC; (10) XP. 11, 12. Ilselithina fusa (11) Sample 189-1168A-48X-2, 2 cm (XP); (12) Sample 189-1168A-46X-7, 2 cm (XP).