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Ashworth, M. P.; Ruck, E. C.; Lobban, C. S.; Romanovicz, D. K.; Theriot, E. C. (2012). A revision of the genus Cyclophora and description of Astrosyne gen. nov. (Bacillariophyta), two genera with the pyrenoids contained within pseudosepta. Phycologia. 51(6): 684-699.