Petrosiidae

{{Short description|Family of sponges}}

{{Automatic taxobox

| image = Reef3860 - Flickr - NOAA Photo Library.jpg

| image_caption = Xestospongia muta

| taxon = Petrosiidae

| authority = van Soest, 1980

| subdivision_ranks = Genera

| subdivision = See text

}}

Petrosiidae is a family of sponges, first described in 1980 by Rob van Soest{{cite journal |author=van Soest, R.W.M. |date=1980 |title=Marine sponges from Curaçao and other Caribbean localities. Part II. Haplosclerida |url=https://www.marinespecies.org/aphia.php?p=sourceget&id=8475 |journal=Uitgaven van de Natuurwetenschappelijke Studiekring voor Suriname en de Nederlandse Antillen. No. 104. Studies on the Fauna of Curaçao and other Caribbean Islands |volume=62 |issue=191 |pages=1-173 |editor=Hummelinck, P.W. |editor2=Van der Steen, L.J.}} which contains the following four genera:{{Cite web|url=http://www.marinespecies.org/aphia.php?p=taxdetails&id=131638|title = WoRMS - World Register of Marine Species - Petrosiidae van Soest, 1980}}

• Acanthostrongylophora Hooper, 1984
• Neopetrosia de Laubenfels, 1949
• Petrosia Vosmaer, 1885
• Xestospongia de Laubenfels, 1932