Phylum Porifera Grant, 1836 - sponges
   Class Demospongiae Sollas, 1885 - demosponges
     'Lithistid' Demospongiae Pisera & Lévi, 2002
       01 Family Scleritodermidae Sollas, 1888 see Family Scleritodermatidae Sollas, 1888
       02 Family Corallistidae Sollas, 1888
       03 Family Pleromidae Sollas, 1888 see Family Pleromatidae Sollas, 1888
       04 Family Theonellidae Lendenfeld, 1903
       05 Family Siphonidiidae Lendenfeld, 1903
       06 Family Neopeltidae Sollas, 1888
       07 Family Azoricidae Sollas, 1888
       08 Family Desmanthidae Topsent, 1893
       09 Family Vetulinidae Lendenfeld, 1903
       10 Family Phymatellidae Schrammen, 1910
       11 Family Isoraphiniidae Schrammen, 1924
       12 Family Macandrewiidae Gray, 1859
       13 Family Phymaraphiniidae Schrammen, 1910