Phylum Porifera Grant, 1836 - sponges Class Hexactinellida Schmidt, 1870 - hexactinellids Subclass Hexasterophora Schulze, 1886 Order Lychniscosa Schrammen, 1903 see Order Lychniscosida Schrammen, 1903 Family Dactylocalycidae Gray, 1867 Subfamily †Dactylocalycinae Gray, 1867 Genus †Exanthesis Regnard, 1925 Subgenus †E. (Exanthesis) Regnard, 1925