Phylum Porifera Grant, 1836 - sponges
   Class Hexactinellida Schmidt, 1870 - hexactinellids
     Subclass Hexasterophora Schulze, 1886
       Order Lyssacinosa Zittel, 1877 see Order Lyssacinosida Zittel, 1877
         Family Euplectellidae Gray, 1867
           1 Subfamily Euplectellinae Gray, 1867
           2 Subfamily Taegerinae Schulze, 1886 see Subfamily Corbitellinae Gray, 1872
           3 Genus †Silesiaspongia Pisera & Bodzioch, 1991
           4 Genus †Euplectellina Termier, Termier & Thibieroz, 1990