Phylum Porifera Grant, 1836 - sponges
Class Demospongea Sollas, 1875
see Class Demospongiae Sollas, 1885
Subclass Ceractinomorpha Lévi, 1953
see Class Demospongiae Sollas, 1885
Order †Agelasida Hartman, 1980
Family †Sestrostomellidae de Laubenfels, 1955
1 Genus †Ateloracia Pomel, 1872
2 Genus †Brevisiphonella Russo, 1981
3 Genus †Himatella Zittel, 1878
4 Genus †Polysiphonella Russo, 1981
5 Genus †Sestrostomella Zittel, 1878
6 Genus †Epitheles de Fromentel, 1860
7 Genus †Winwoodia Richardson & Thacker, 1920
8 Genus †Trachytila Welter, 1910