planoprotostelium aurantium planoprotostelium aurantium planoprotostelium aurantium is a mycetozoan species. planoprotostelium aurantium scientific classification (unranked): amoebozoa infraphylum: mycetozoa class: protostelia order: protosteliida family: protosteliidae genus: planoprotostelium species: p. aurantium binomial name planoprotostelium aurantiumolive & stioanovitch, 1971