Class †Algospongia Termier, Termier & Vachard, 1977, incertae sedis Order †Aoujgaliida G. Termier et al., 1975 Suborder †Aoujgaliina Family †Stacheiidae [Genus †Foliophycopsis Gaillot, 2006] see Genus Fourstonella Cummings, 1955