Phylum Porifera Grant, 1836 - sponges Class Demospongiae Sollas, 1885 - demosponges Order Verticillitida Termier & Termier, 1977 see Order Dictyoceratida Minchin, 1900 Family Verticillitidae Steinmann, 1882 Genus †Marinduqueia Yabe & Sugiyama, 1939