Phylum [Porifera] Grant, 1836 - sponges
   Class Demospongiae Sollas, 1885 - demosponges
     Subclass Heteroscleromorpha Cárdenas, Pérez & Boury-Esnault, 2012
       1 Order Tetractinellida Marshall, 1876
       2 Order Hadromerida Topsent, 1894
       3 Order Agelasida Hartman, 1980
       4 Order Halichondrida Vosmaer, 1887
       5 Order Poecilosclerida Topsent, 1928
       6 Order Spongillida Cárdenas, Pérez & Boury-Esnault, 2012