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
             1 ?Genus †Calathiscus Sollas, 1883
             2 Genus †Exanthesis Regnard, 1925
             3 Genus †Moretiella Breistroffer, 1949
             4 Genus †Paraplocia Pomel, 1872
             5 ?Genus †Scolecosia Rauff, 1933