Plate P2. Scale bar = 10 µm, except upper right corner where scale bar = 20 µm. 1. Cavitatus jouseanus (Sample 183-1140A-7R-2, 25-27 cm). 2, 3. Stephanopyxis turris group (Sample 183-1140A-20R-4, 25-27 cm). 4. Hemiaulus polycystinorum (Sample 183-1140A-22R-1, 100-102 cm). 5, 6. Hemiaulus pungens; (5) Sample 183-1140A-22R-3, 25-27 cm; (6) Sample 183-1140A-20R-1, 25-27 cm. 7. Hemiaulus inaequilaterus (Sample 183-1140A-21R-4, 100-102 cm). 8. Sceptroneis mayenica (Sample 183-1140A-20R-1, 25-27 cm). 9, 10. Stephanopyxis turris var. trispinosus (Sample 183-1140A-20R-2, 100-102 cm). 11. Coscinodiscus rhombicus (Sample 183-1140A-9R-1, 25-27 cm). 12. Hemiaulus sp. aff. H. giganteus (Sample 183-1140A-20R-2, 100-102 cm).

Plate P2. Scale bar = 10 µm, except upper right corner where scale bar = 20 µm. 1. Cavitatus jouseanus (Sample 183-1140A-7R-2, 25-27 cm). 2, 3. Stephanopyxis turris group (Sample 183-1140A-20R-4, 25-27 cm). 4. Hemiaulus polycystinorum (Sample 183-1140A-22R-1, 100-102 cm). 5, 6. Hemiaulus pungens; (5) Sample 183-1140A-22R-3, 25-27 cm; (6) Sample 183-1140A-20R-1, 25-27 cm. 7. Hemiaulus inaequilaterus (Sample 183-1140A-21R-4, 100-102 cm). 8. Sceptroneis mayenica (Sample 183-1140A-20R-1, 25-27 cm). 9, 10. Stephanopyxis turris var. trispinosus (Sample 183-1140A-20R-2, 100-102 cm). 11. Coscinodiscus rhombicus (Sample 183-1140A-9R-1, 25-27 cm). 12. Hemiaulus sp. aff. H. giganteus (Sample 183-1140A-20R-2, 100-102 cm).