"Protozoa" Goldfuss, 1818 - protozoans Phylum Sarcomastigophora Honigberg & Balamuth, 1963 Subphylum Mastigophora Diesing, 1866 - flagellates 1 Class Phytomastigophorea Calkins, 1909 - photosynthetic flagellates 2 Class Zoomastigophorea - "animal-like" flagellates see Phylum Zoomastigina