Axinellida is an order of demosponges in the subclass Heteroscleromorpha. The order contains the families Axinellidae, Heteroxyidae, Raspailiidae, and Stelligeridae.
References
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^ Sur une nouvelle classification des Démosponges. Lévi, C. 1953a. Compte rendu hebdomadaire des séances de l’Académie des sciences. Paris 236(8), pages 853-855
- Morrow, C.; Picton, B.; Erpenbeck, D.; Boury-Esnault, N.; Maggs, C.; Allcock, A. (2012). Congruence between nuclear and mitochondrial genes in Demospongiae: A new hypothesis for relationships within the G4 clade (Porifera: Demospongiae). Molecular Phylogenetics and Evolution, 62(1), pages 174-190., doi:10.1016/j.ympev.2011.09.016
