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 Leucopsacadidae Ijima, 1903 see Family Leucopsacidae Ijima, 1898 Genus Chaunoplectella Ijima, 1896