Heteroscleromorpha

{{short description|Subclass of demosponges}}

{{Automatic taxobox

| image = Axinella polypoides by Line1.jpg

| image_alt = "Axinella polypoides"

| image_caption = Axinella polypoides

| taxon = Heteroscleromorpha

| authority=Cárdenas, Pérez & Boury-Esnault, 2012Cárdenas, P.; Pérez, T.; Boury-Esnault, N. (2012). [https://dx.doi.org/10.1016/b978-0-12-387787-1.00010-6 Sponge Systematics Facing New Challenges.] Advances in Sponge Science: Phylogeny, Systematics, Ecology. 79-209., page(s): 170

|subdivision_ranks = Orders

|subdivision =

• Agelasida
• Axinellida
• Biemnida
• Bubarida
• Clionaida
• Desmacellida
• Haplosclerida
• Merliida
• Poecilosclerida
• Polymastiida
• Scopalinida
• Sphaerocladina
• Spongillida
• Suberitida
• Tethyida
• Tetractinellida
• Trachycladida
• Heteroscleromorpha incertae sedis

| synonyms = {{hidden begin|title = List}}

• Democlavia
• Desmacidonitida
• Hadromerida
• Halichondrida
• Haploscleromorpha
• Lithistida
• Spirastrellida

{{hidden end}}

}}

Heteroscleromorpha is a subclass of demosponges within the phylum Porifera.van Soest, R. (2016). [http://www.marinespecies.org/aphia.php?p=taxdetails&id=607950 Heteroscleromorpha.] Accessed through World Register of Marine Species on 2017-02-17.{{Cite journal |last=Morrow |first=C. C. |last2=Redmond |first2=N. E. |last3=Picton |first3=B. E. |last4=Thacker |first4=R. W. |last5=Collins |first5=A. G. |last6=Maggs |first6=C. A. |last7=Sigwart |first7=J. D. |last8=Allcock |first8=A. L. |date=2013-09-01 |title=Molecular Phylogenies Support Homoplasy of Multiple Morphological Characters Used in the Taxonomy of Heteroscleromorpha (Porifera: Demospongiae) |url=https://academic.oup.com/icb/article-lookup/doi/10.1093/icb/ict065 |journal=Integrative and Comparative Biology |language=en |volume=53 |issue=3 |pages=428–446 |doi=10.1093/icb/ict065 |issn=1540-7063 |pmc=3744896 |pmid=23753661}}

Heteroscleromorpha has the most taxa of the demosponge subclasses, with an estimated 7500 species.