Kingdom Animalia Linnaeus, 1758 - animals Phylum Porifera Grant, 1836 - sponges Class Demospongiae Sollas, 1885 - demosponges Subclass Clavaxinellida Lévi, 1956 1 Order Protomonaxonida Finks & Rigby, 2004 2 Order Clavulina Vosmaer, 1887