Phylum Porifera Grant, 1836 - sponges
   Class Demospongiae Sollas, 1885 - demosponges
     Order †Permosphincta Termier & Termier, 1974
       Suborder †Porata Seilacher, 1962
         Family †Phragmocoeliidae Ott, 1974
           1 Genus †Phragmocoelia Ott, 1974
           2 Genus †Radiothalamos Pickett & Rigby, 1983