After Parker, 1982, and de Laubenfels, 1955

<==o Porifera Grant, 1872 [Parazoa Sollas, 1884] (sponges; sienieläimet)
   |?-o Sclerospongiae
   |  |--o Stromatoporoida (stromaporoidit, kivisienet)
   |  |  |-- Astroscleridae
   |  |  `-- Calcifibrospongiidae
   |  |--o Ceratoporellida
   |  |  |-- Ceratoporellidae
   |  |  |-- Tabulospongida
   |  |  `-- Acanthochaetetidae
   |  `--o Merliida
   |     `-- Merliidae
   |--o Silicispongea Schmidt, 1862 [Silicea Bowerbank, 1864]
   |  |-- Hexactinellida Schmidt, 1870 (lasisienet)
   |  |--o Demospongiae Sollas, 1875, emend. Borchiellini et al., 2004 [Demospongea Sollas, 1875 sensu de Laubenfels, 1955] (sarveispiisienet)
   |  |  |?- †Demospongiae indet. [biochemical] [Cryo. SWAs.] (Love et al., 2009)
   |  |  |?-o Carnosida [not recognized by Parker, 1982]
   |  |  |  `-- Halinidae
   |  |  |-- Tetractinomorpha
   |  |  `-- Ceractinomorpha
   |  `--o Homoscleromorpha Lévi, 1973, emend. Borchiellini et al., 2004
   |     `--o Homosclerophorida
   |        |-- Oscarellidae
   |        `-- Plakinidae
   `-- Calcispongia Johnston, 1842 [Calcarea Bowerbank, 1864] (kalkkisienet)

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