Phylum Porifera Grant, 1836 - sponges
   Class Demospongea Sollas, 1875 see Class Demospongiae Sollas, 1885
     Subclass Ceractinomorpha Lévi, 1953 see Class Demospongiae Sollas, 1885
       Order Haplosclerida Topsent, 1928
         Family Desmacidontidae de Laubenfels, 1955 see Family Desmacididae Schmidt, 1870
           1 Genus †Guitarra Carter, 1874
           2 Genus †Desmacidon Bowerbank, 1861