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

References