Taxonomic studies of dinoflagellates began at the time of early light microscopists, and modern studies have shown that long-held views on the taxonomy are often unsatisfactory. Two new orders, Amphidiniales and Tovelliales, three new families, Amphidiniaceae, Gyrodiniaceae and Sphaerodiniaceae, and two new genera,  and , are proposed. Seven new species and one new variety are described. Four new names and 80 new combinations are established.weiterlesen