Figs 21–27 in Coccolithophorids in Polar Waters: Quaternariella and Porsildia gen. nov. Mercedesia gen. nov., Ericiolus,

Figs 21–27. Quaternarielle obscura. TEM whole mounts from the Arctic, viz. West Greenland/Arctic Station (Figs 21, 22) and NEW (Figs 23–27). 21 – groups of crystallites; 22 – complete cell with appendages; 23 – complete cell with curled up haptonema and nicely organized packages of crystallites; 24 – detail from Fig. 23 showing the boxed organization of crystallites; dissolution phenomena are obvious; 25, 26 – complete cells showing an even spread of crystallite packages; 27 – high magnification of single rhombohedral crystallites.