Phylum Porifera Grant, 1836 - sponges
   Class Demospongiae Sollas, 1885 - demosponges
     Order †Permosphincta Termier & Termier, 1974
       Suborder †Aporata Seilacher, 1962
         Family †Fistulispongiidae Termier & Termier, 1977
           1 Genus †Cystothalamiella Rigby & Potter, 1986
           2 Genus †Fistulispongia Termier & Termier, 1977
           3 Genus †Russospongia Senowbari-Daryan, 1990
           4 Genus †Tolminothalamia Senowbari-Daryan, 1990
           5 Genus †Uvacoelia Kugel, 1987
           6 Genus †Vesicocaulis Ott, 1967