Phylum Porifera Grant, 1836 - sponges
   Class Demospongea Sollas, 1875 see Class Demospongiae Sollas, 1885
     Subclass †Lithistida Schmidt, 1870
       Order Spirosclerophorida Reid, 1963
         Suborder Rhizomorina Zittel, 1895
           Superfamily Azoricoidea Sollas, 1888
             Family Azoricidae Sollas, 1888
               1 Subfamily Azoricinae Sollas, 1888
               2 Subfamily †Cytoraciinae Schrammen, 1924
               3 Subfamily †Aulosominae Schrammen, 1924
               4 Subfamily †Leiochoniinae Schrammen, 1924
               5 Subfamily †Astroboliinae de Laubenfels, 1955
               6 Subfamily †Siphonidiinae Lendenfeld, 1903 see Family Siphonidiidae Lendenfeld, 1903