Phylum Porifera Grant, 1836 - sponges
   Class Demospongea Sollas, 1875 see Class Demospongiae Sollas, 1885
     Subclass Choristida Sollas, 1880 see Order Tetractinellida Marshall, 1876
       01 Order Plakinida Reid, 1968 see Order Homosclerophorida Dendy, 1905
       02 Order Pachastrellida Reid, 2004 see Suborder Astrophorina Sollas, 1888
       03 Order Ancorinida Reid, 1968 see Suborder Astrophorina Sollas, 1888
       04 Order Craniellida Reid, 1968 [monotypic] see Suborder Spirophorina
       05 Family †Cephaloraphiditidae Reid, 1968
       06 Family †Helminthophyllidae Schrammen, 1936 [monotypic]
       07 Family †Scolioraphididae Zittel, 1879
       08 Genus †Ungulaspongia Mostler, 1996
       09 Genus †Arthaberia Siemiradzki, 1915
       10 Genus †Fusiferella de Laubenfels, 1955