Summary: | Figs 9–11. Trigonaspis diskoensis. TEM whole mounts from NE Greenland (NEW) (Fig. 9), and West Greenland (Arctic Station) (Figs 10–11). 9 – high magnification of tower-shaped flagellar pole coccoliths (from Fig. 5) showing the helical placement of triangular crystallite groups; 10 – high magnification of hat-shaped coccolith detached from the cell shown in Fig. 11. Notice that the triangular crystallites are arranged in highly organized tiers; 11 – Whole cell with extended flagella and haptonema. Published as part of Thomsen, Helge A. & Østergaard, Jette B., 2015, Coccolithophorids in Polar Waters: Trigonaspis spp. Revisited, pp. 85-96 in Acta Protozoologica 54 (2) on page 91, DOI:10.4467/16890027AP.15.007.2732, http://zenodo.org/record/12638290
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