Phylum Porifera Grant, 1836 - sponges Class Hexactinellida Schmidt, 1870 - hexactinellids Subclass Hexasterophora Schulze, 1886 Order Hexactinosa Schrammen, 1903 see Order Hexactinosida Schrammen, 1903 Family Euretidae Zittel, 1877 Subfamily Euretinae Zittel, 1877 Genus †Eurete Semper, 1868 Subgenus †E. (Aulodomus) Schrammen, 1936