Phylum Porifera Grant, 1836 - sponges Class Calcarea Bowerbank, 1864 - calcareous sponges Order †Heteractinida Hinde, 1887 see Class Heteractinida de Laubenfels, 1955 Family †Nuchidae Pickett, 2002 1 Genus †Jawonya Kruse, 1987 2 Genus †Wagima Kruse, 1987 3 Genus †Blastulospongia Pickett & Jell, 1983 4 Genus †Nucha Pickett & Jell, 1983