Lithonida: Brief Summary
provided by wikipedia
- license
- cc-by-sa-3.0
- copyright
- Wikipedia authors and editors
- original
- visit source
- partner site
- wikipedia
- ID
Lithonida is an order of calcareous sponges in the class Calcarea in the animal phylum Porifera.
Calcaronea with reinforced skeleton consisting either of linked or cemented basal actines of tetractines, or of a rigid basal mass of calcite. Diapason spicules are generally present and the canal system is leuconoid.
Michinella
Monoplectoninia
Petrostroma
Plectroinia
Tulearinia
Petrobiona
This article about a calcareous sponge is a stub. You can help Wikipedia by expanding it. 
