Phylum Porifera Grant, 1836 - sponges
   Class Demospongea Sollas, 1875 see Class Demospongiae Sollas, 1885
     Subclass Ceractinomorpha Lévi, 1953 see Class Demospongiae Sollas, 1885
       Order †Agelasida Hartman, 1980
         Family †Virgolidae Termier & Termier, 1977
           Subfamily †Virgolinae Termier & Termier, 1977
             Genus †Intratubospongia Rigby, Fan Jiasong & Zhang Wei, 1989