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
           Subfamily Taegerinae Schulze, 1886 see Subfamily Corbitellinae Gray, 1872
             1 Genus †Cypellospongia Rigby, 1983
             2 Genus †Arhoussia du Dresnay, Termier & Termier, 1978
             3 Genus †Guemeuria du Dresnay, Termier & Termier, 1978
             4 Genus †Tagountia du Dresnay, Termier & Termier, 1978
             5 Genus †Tillichtia du Dresnay, Termier & Termier, 1978
             6 Genus †Proeuplectella Moret, 1926
             7 Genus †Purisiphonia Bowerbank, 1869
             8 Genus †Regadrella Schmidt, 1880