Phylum Porifera Grant, 1836 - sponges
   Class Demospongiae Sollas, 1885 - demosponges
     Order †Permosphincta Termier & Termier, 1974
       Suborder †Aporata Seilacher, 1962
         Family †Thaumastocoeliidae Ott, 1967
           1 Genus †Apocoelia Rigby, 1984
           2 Genus †Enoplocoelia Steinmann, 1882
           3 Genus †Girtyocoelia Cossmann, 1909
           4 Genus †Pamirothalamia Boiko, 1991
           5 Genus †Phraethalamia Senowbari-Daryan & Ingavat-Helmcke, 1994
           6 Genus †Sollasia Steinmann, 1882
           7 Genus †Thaumastocoelia Steinmann, 1882