Kingdom Protista (Haeckel, 1866) - protists Phylum Sarcomastigophora Honigberg & Balamuth, 1963 Subphylum Mastigophora Diesing, 1866 - flagellates Class Phytomastigophorea Calkins, 1909 - photosynthetic flagellates Order Dinoflagellida - dinoflagellates see Phylum Dinoflagellata Engl. (1903) Genus Ceratium Schrank (1793)