Haplosclerida
| Haplosclerida | |
|---|---|
| Callyspongia crassa | |
| Scientific classification | |
| Domain: | Eukaryota | 
| Kingdom: | Animalia | 
| Phylum: | Porifera | 
| Class: | Demospongiae | 
| Subclass: | Heteroscleromorpha | 
| Order: | Haplosclerida Topsent, 1928 | 
| Families | |
| See text | |
Haplosclerida is an order of demosponges. It contains the following families:
- Calcifibrospongiidae Hartman, 1979
- Callyspongiidae de Laubenfels, 1936
- Chalinidae Gray, 1867
- Niphatidae Van Soest, 1980
- Petrosiidae Van Soest, 1980
- Phloeodictyidae Carter, 1882