Protist, Section X. Rhizopod sarcodines

Many possess nonaxopod pseudopodia in at least some stage of the life cycle, or a shuttle-type flow of cytoplasm is exhibited; tubular mitochondrial cristae; biflagellate stage is common in many species; pseudopodia are often employed in locomotion and holozoic feeding; some 44,000 described species, of which 85 percent are foraminiferans, with about 75 percent of the total