Phylum Porifera Grant, 1836 - sponges Class Demospongea Sollas, 1875 see Class Demospongiae Sollas, 1885 Subclass Choristida Sollas, 1880 see Order Tetractinellida Marshall, 1876 Order Ancorinida Reid, 1968 see Suborder Astrophorina Sollas, 1888 Family †Paelospongiidae Mostler, 1986 Genus †Paelospongia Mostler, 1986