FIGURES 4–10 in Morphological features and new description of the fossil species Thalassiosira dolmatovae (Bacillariophyceae)

FIGURES 4–10: Thalassiosira dolmatovae, LM (Figs. 4–8), SEM (Figs. 9–10), external views of whole valves. Arrows show central fultoportula. Black line segment is scale bar = 10 µm for Figs. 4–8. a–c—valve in different focus. Fig. 4. Holotype. Fig. 5. Isotype. Figs. 4–6, 9–10, sample #CAS 608382. Fig. 7, #CAS 60269-s. Fig. 8. Paratype, Sample #CAS 608400.