Demospongea - Tetractinomorpha

Full reference: R. M. Finks, R. E. H. Reid, and J. K. Rigby. 2004. Porifera (Demospongea, Hexactinellida, Heteractinida, Calcarea). Treatise on Invertebrate Paleontology Part E, Revised E(3):1-872

Parent taxon: Tetractinomorpha according to R. M. Finks et al. 2004

Sister taxa: Axinellida, Belemnospongia, Chondrosida, Criccospongiidae, Hadromerida, Spirophorida

Subtaxa: Eutaxicladina

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Ecology: stationary epifaunal suspension feeder