Petrosina
| Petrosina | |
|---|---|
 | |
| Xestospongia muta | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Porifera |
| Class: | Demospongiae |
| Order: | Haplosclerida |
| Suborder: | Petrosina Boury-Esnault & Van Beveren, 1982 |
| Families | |
|
See text | |
| Synonyms[1] | |
| |
Petrosina is the name of a suborder of marine haplosclerid sponges. It includes three families.
Taxonomy
The Petrosina were first established by Nicole Boury-Esnault and Monique Van Beveren in 1982. They are classified under the order Haplosclerida of the class Demospongiae.[1][2]
Description
Members of Petrosina are characterized by isotropic skeletons. The spicules are almost always smooth oxeas or strongyles. There is no differentiation between primary and secondary spicule tracts or fibers, and the latter lack orientation.[3][4]
All members of the suborder are presumed to be oviparous. They are also usually hard or incompressible in consistency. Spicule density is high with little to no spongin present.[3][4]
Families
These families are classified under Petrosina:[4]
- Calcifibrospongiidae Hartman, 1979
- Petrosiidae Van Soest, 1980
- Phloeodictyidae Carter, 1882
References
- 1 2 Rob van Soest (2013). R. W. M. Van Soest, N. Boury-Esnault, J. N. A. Hooper, K. Rützler, N. J. de Voogd, B. Alvarez de Glasby, E. Hajdu, A. B. Pisera, R. Manconi, C. Schoenberg, D. Janussen, K. R. Tabachnick, M. Klautau, B. Picton, M. Kelly & J. Vacelet, ed. "Petrosina". World Porifera database. World Register of Marine Species. Retrieved September 25, 2013.
- ↑ Nicole Boury-Esnault & Monique Van Beveren (1982). "Les Démosponges du plateau continental de Kerguelen-Heard". Comité national français des recherches antarctiques 52: 1–175.
- 1 2 Rob van Soest, Bernard Picton, & Christine Morrow. "Suborder Petrosina". Sponges of the NE Atlantic, Marine Species Identification Portal. Retrieved September 25, 2013.
- 1 2 3 Rob W. M. Van Soest & John N. A. Hooper (2002). "Suborder Petrosina Boury-Esnault & Van Beveren, 1982". In John N. A. Hooper & Rob W. M. Van Soest. Systema Porifera: A Guide to the Classification of Sponges. Kluwer Academic / Plenum Publishers. pp. 891–892. ISBN 0306472600.