Subclass Myxogastromycetidae see Subclass Myxogastria Fries, 1829 Order Echinosteliales G.W. Martin (1961) see Order Echinosteliida Martin, 1961 Family Echinosteliaceae Rostaf. (1873) see Family Echinosteliidae Rostafinski, 1873 Genus Echinostelium de Bary, 1873