Class
Heteractinida Hinde, 1888
Aiheeseen liittyvät julkaisut
Rhebergen, F. 2007. Revision of the species Astraeospongium Patina Roemer, 1861, based on Ordovician bedrock specimens from Estonia. GFF 129, 1, 17-22. DOI:10.1080/11035890701291017
List of species
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Luokittelu
| Organism group | Biota |
| Kingdom | Animalia |
| Phylum | Porifera |
| Class | Archaeocyatha |
| Calcarea | |
| Demospongea | |
| Heteractinida | |
| Order | Octactinella |
| Class | Hexactinellida |
| Stromatoporoidea | |
| Genus | Cliona |