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Lithonida

Lithonida
Scientific classification
Kingdom: Animalia
Phylum: Porifera
Class: Calcarea
Subclass: Calcaronea
Order: Lithonida
Vacelet, 1981
Families
  • Minchinellidae
  • Petrobionidae

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

Porifera Calcarea Calcaronea

http://www.catalogueoflife.org/col/browse/tree



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