Phylum Porifera Grant, 1836 - sponges
   Class Demospongea Sollas, 1875 see Class Demospongiae Sollas, 1885
     Subclass Ceractinomorpha Lévi, 1953 see Class Demospongiae Sollas, 1885
       Order Vaceletida Finks & Rigby, 2004
         1 Family †Solenolmiidae Engeser, 1986
         2 Family †Colospongiidae Senowbari-Daryan, 1990
         3 Family †Gigantothalamiidae Senowbari-Daryan, 1994
         4 Family †Tebagathalamiidae Senowbari-Daryan & Rigby, 1988
         5 Family †Cheilosporitiidae Senowbari-Daryan & García-Bellido, 2002 [monotypic] see Family Cheilosporitidae Fischer, 1962
         6 Family †Salzburgiidae Senowbari-Daryan & Schäfer, 1979 [monotypic]
         7 Family †Cribrothalamiidae Senowbari-Daryan, 1990 [monotypic]
         8 Family Verticillitidae Steinmann, 1882
         9 Genus †Platysphaerocoelia Boiko, 1991