Haplosclerida

Haplosclerida is an order of demosponges. It contains the following families:

• Calcifibrospongiidae <small>Hartman, 1979</small>
• Callyspongiidae <small>de Laubenfels, 1936</small>
• Chalinidae <small>Gray, 1867</small>
• Niphatidae <small>Van Soest, 1980</small>
• Petrosiidae <small>Van Soest, 1980</small>
• Phloeodictyidae <small>Carter, 1882</small>

References