Keratosa

Superregnum: Eukaryota
Cladus: Amorphea
Cladus: Obazoa
Cladus: Opisthokonta
Cladus: Holozoa
Cladus: Filozoa
Cladus: Choanozoa
Regnum: Animalia
Phylum: Porifera
Classis: Demospongiae
Subclassis: Keratosa
Ordines (2): Dendroceratida – Dictyoceratida
[Source:Porifera World Database (WoRMS 2017)]

• Keratosa Grant, 1861: 75

• Grant, R.E. 1861. Tabular view of the primary divisions of the Animal Kingdom, intended to serve as an outline of an elementary course of recent Zoology (Cainozoology), or the Natural history of existing animals. Walton and Maberly: London. i–vi + 1–91.

• Erpenbeck, D., Sutcliffe, P., Cook, S. de C., Dietzel, A., Maldonado, M., Van Soest, R.W., Hooper, J.N. & Wörheide, G. 2012. Horny sponges and their affairs: On the phylogenetic relationships of keratose sponges. Molecular Phylogenetics and Evolution 63(3): 809–816. DOI: 10.1016/j.ympev.2012.02.024 Reference page. 
• Redmond, N.E., Morrow, C.C., Thacker, R.W., Díaz, M.C., Boury-Esnault, N., Cárdenas, P., Hajdu, E., Lôbo-Hajdu, G., Picton, B.E., Pomponi, S.A., Kayal, E. & Collins, A.G. 2013. Phylogeny and Systematics of Demospongiae in Light of New Small-Subunit Ribosomal DNA (18S) Sequences. Integrative and Comparative Biology 53(3): 388–415. DOI: 10.1093/icb/ict078 Reference page. 
• Morrow, C. & Cárdenas, P. 2015. Proposal for a revised classification of the Demospongiae (Porifera). Frontiers in Zoology 12: 7. DOI: 10.1186/s12983-015-0099-8 Reference page. 

• Keratosa in the World Register of Marine Species