Calcinea

The Calcinea are a subclass of the calcareous sponges. Its phylum is Porifera and class is Calcarea.^[1] Branching is usually dichotomous or umbellate with anastomoses, which gives rise to reticulate growths on stalks in adults. Most varieties are coral red or sulphur yellow.^[2]

Calcinea
Clathrina clathrus
Scientific classification
Kingdom:	Animalia
Phylum:	Porifera
Class:	Calcarea
Subclass:	Calcinea Bidder, 1898
Orders
Clathrinida Murrayonida