Phylum Porifera Grant, 1836 - sponges
Class Demospongiae Sollas, 1885 - demosponges
Order Poecilosclerida Topsent, 1928
Suborder Myxillina Hajdu, van Soest & Hooper, 1994
01 Family Chondropsidae Carter, 1886
02 Family Coelosphaeridae Dendy, 1922
03 Family Crambeidae Lévi, 1963
04 Family Crellidae Dendy, 1922
05 Family Dendoricellidae Hentschel, 1923
06 Family Desmacididae Schmidt, 1870
07 Family Hymedesmiidae Topsent, 1928
08 Family Iotrochotidae Dendy, 1922
09 Family Myxillidae Lundbeck, 1905
10 Family Phellodermidae van Soest & Hajdu, 2002
11 Family Tedaniidae Ridley & Dendy, 1886