Phylum Porifera Grant, 1836 - sponges Class Demospongiae Sollas, 1885 - demosponges Order †Permosphincta Termier & Termier, 1974 Suborder †Aporata Seilacher, 1962 Family †Fistulispongiidae Termier & Termier, 1977 Genus †Russospongia Senowbari-Daryan, 1990