Phylum Porifera Grant, 1836 - sponges Class †Heteractinida de Laubenfels, 1955 Order †Octactinellida Hinde, 1887 1 Family †Astraeospongiidae Miller, 1889 2 Family †Eiffeliidae Rigby, 1986 3 Family †Wewokellidae King, 1943 4 Family †Nuchidae Pickett, 2002