Literature
- Bidder, G.P. 1898. The skeleton and classification of calcareous sponges. Proc. R. Soc. London, 64: 61-76.
- Borojevic, R., N. Boury-Esnault and J. Vacelet 1990. A revision of the supraspecific classification of the subclass Calcinea (Porifera, class Calcarea). Bull. Mus. natn. Hist. nat., Paris, (4) 12 (A,2): 243-276.
- Borojevic, R., N. Boury-Esnault and J. Vacelet, unpublished. Definitions of Calcarea. 15 pp. .