Phylum [Porifera] Grant, 1836 - sponges Class Demospongiae Sollas, 1885 - demosponges Subclass Heteroscleromorpha Cárdenas, Pérez & Boury-Esnault, 2012 Order Tetractinellida Marshall, 1876 1 Suborder Astrophorina Sollas, 1888 2 Suborder Spirophorina