Phylum Porifera Grant, 1836 - sponges
   Subphylum Hexactinellida Schmidt, 1870 see Class Hexactinellida Schmidt, 1870
     Class Hexasterophora F.E. von Schulze see Subclass Hexasterophora Schulze, 1886
       Order Lyssacinosida Zittel, 1877
         Family Caulophacidae Schulze, 1886 see Subfamily Lanuginellinae Gray, 1872
           Genus Caulodiscus Ijima, 1927 see Subgenus Caulodiscus Ijima, 1927
             Caulodiscus lotifolium (Ijima, 1903)