Plate P9. 1, 2. Thalassiosira antiqua (Grunow) Cleve-Euler (Sample 191-1179C-9H-5, 75–77 cm). 3–5. Thalassiosira cf. inura Gersonde (Samples 191-1179C-12H-5, 75–77 cm [3], and 191-1179C-17H-3, 75–77 cm [4, 5]). 6. Thalassiosira cf. complicata Gersonde (Sample 191-1179C-14H-4, 73–75 cm). 7, 8. Thalassiosira eccentrica (Ehrenberg) Cleve (Samples 191-1179C-19H-1, 72–74 cm [7], and 191-1179C-16H-5, 75–77 cm [8]). 9. Thalassiosira nordenskioeldii Cleve (Sample 191-1179B-5H-5, 75–77 cm). 10, 11. Thalassiosira lineata Jousé (Sample 191-1179B-3H-6, 75–77 cm). 12–14. Thalassiosira oestrupii (Ostenfeld) Proshkina-Lavrenko (Samples 191-1179B-2H-4, 75–77 cm [12], 191-1179B-3H-5, 75–77 cm [13], and 191-1179C-11H-7, 35–37 cm [14]). 15–17. Thalassiosira miocenica Schrader (Samples 191-1179C-17H-5, 75–77 cm [15], 191-1179C-18H-4, 75–77 cm [16], and 191-1179C-14H-4, 73–75 cm [17]). 18. Trachyneis aspera (Ehrenberg) Cleve (Sample 191-1179C-2H-7, 71–73 cm). Scale bars = 10 µm.