Phylum Porifera Grant, 1836 - sponges
   Class Hexactinellida Schmidt, 1870 - hexactinellids
     Subclass Hexasterophora Schulze, 1886
       01 Order Lyssacinosa Zittel, 1877 see Order Lyssacinosida Zittel, 1877
       02 Order Hexactinosa Schrammen, 1903 see Order Hexactinosida Schrammen, 1903
       03 Order Lychniscosa Schrammen, 1903 see Order Lychniscosida Schrammen, 1903
       04 Genus †Pinnatispongia Xiping & Knoll, 1996
       05 Genus †Silicunculus Bengtson, 1986
       06 Genus †Kometia Webby & Trotter, 1993
       07 Genus †Konyrium Nazarov & Popov, 1976
       08 Genus †Australispongia Xiping & Knoll, 1996
       09 Genus †Chelispongia Webby & Trotter, 1993
       10 Genus †Bothroconis King, 1850
       11 Genus †Hodsia Moisseev, 1939
       12 Genus †Baccispongia Quenstedt, 1877
       13 Genus †Crucispongia Quenstedt, 1877
       14 Genus †Acanothyia Pomel, 1872
       15 Genus †Antrispongia Quenstedt, 1878
       16 Genus †Diplopleuriana Reid, 2004
       17 Genus †Farreopsis Schrammen, 1924
       18 Genus †Lonsda de Laubenfels, 1955