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Calcaronea is a subclass of sea sponges in the class Calcarea. They are Calcarea with the triactines and the basal system of tetractines sagittal (i.e. the rays of the spicule make unequal angles with each other), exceptionally regular. In ontogeny the first spicules to be secreted are diactines. Choanocytes are apinucleate. Calcaronea have amphiblastula larvae
| Calcaronea | |
|---|---|
 | |
| Leucandra losangelensis (order Leucosolenida, family Grantiidae) | |
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Porifera |
| Class: | Calcarea |
| Subclass: | Calcaronea |
| Orders | |
- World Register of Marine Species link: Calcaronea (+species list)
- "Calcaronea". National Center for Biotechnology Information (NCBI).
 | This article about a calcareous sponge is a stub. You can help Wikipedia by expanding it. |
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