Phylum Porifera Grant, 1836 - sponges
   Class Hexactinellida Schmidt, 1870 - hexactinellids
     Subclass Hexasterophora Schulze, 1886
       Order Lyssacinosa Zittel, 1877 see Order Lyssacinosida Zittel, 1877
         Family †Stauractinellidae de Laubenfels, 1955 [monotypic]
           1 Genus †Stauractinella Zittel, 1878