Kingdom Animalia Linnaeus, 1758 - animals Phylum Porifera Grant, 1836 - sponges Class Demospongiae Sollas, 1885 - demosponges Subclass Choristida Sollas, 1880 see Order Tetractinellida Marshall, 1876 Order Plakinida Reid, 1968 see Order Homosclerophorida Dendy, 1905