Keluarga bunga karang.

Pohon evolusi bunga karang bercabang tiga
* Calcarea
* Hexactinellida
* Demospongiae

Penney JT. 1932. A simple method for the study of living fresh-water sponges. Sci. 75:341.

Ruppert EE, Fox RS, Barnes RB. 2004. Invertebrate Zoology, A functional evolutionary approach, 7 th ed. Brooks Cole Thomson, Belmont CA. 963 pp.

Simpson T. 1984. The Cell Biology of Sponges. Springer-Verlag, New York. 585p.

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