Suborder Spumellaria Ehrenberg, 1875 see Class Spumellaria Ehrenberg, 1875 Family Ethmosphaeridae Haeckel, 1862 1 Genus Plegmosphaera Haeckel, 1881 2 Genus Styptosphaera Haeckel, 1881 3 Genus Carposphaera Haeckel, 1881