Phylum Porifera Grant, 1836 - sponges Class Demospongea Sollas, 1875 see Class Demospongiae Sollas, 1885 Subclass Ceractinomorpha Lévi, 1953 see Class Demospongiae Sollas, 1885 Order Verongida Bergquist, 1978 Family †Vauxiidae Walcott, 1920 [monotypic] Genus †Vauxia Walcott, 1920