Parent taxon: Porifera according to C. W. Stearn et al. 1999
See also Sepkoski 2002
Sister taxa: Aetholicopalla, Alasonia, Aphlebospongia, Archaeocyatha, Asteriscosella, Batchatocyathus, Bicyathus, Bortepesia, Calcarea, Clathrispongia, Codites, Coniatopenia, Cornuaspongia, Coronacollina, Cotyliscus, Cribricyatha, Cribroscyphia, Cuneiphycus, Cupulochonia, Cupulospongia, Cyclospongia, Demospongiae, Diestosphecion, Diplostomella, Disjectoporidae, Dulmius, Dulmius innovatus, Dyocopanon, Eocoryne, Eocyathispongia, Floriana, Glenodictyum, Helicolocellus, Heteractinida, Hexactinellida, Holocoelia, Homoscleromorpha, Lamellispongia, Limnoretheles, Megalelasma, Microcoryne, Monotheles, Nabaviella, Nelumbosium, Nelumbosium primum, Oligoplagia, Palaeophragmodictya, Pharetronida, Pilosphecion, Plectinia, Polyactinellidae, Polycnemiseudea, Psephidia, Pulchrilaminida, Puppispongia, Puppispongia prostrema, Radicispongia, Rauffia, Rugoconites, Sclerospongiae, Scribroporella, Scyphia, Shitangspongia, Sinoflabrum, Sparsispongia, Sphinctozoa, Spirocyathidae, Stromatofungia, Taraxaculum, Textispongia, Thalamospongia, Thectardis, Toriscodermia, Tragos, Trammeria, Tubispongia
Subtaxa: Actinostromatida Adriatella Amphiporida Andenipora Axiotubullina Cassianostroma Ceraostroma Circopora Clathrodictyida Clavidictyon Coenostella Cylicopsis Desmopora Diparistomaria Disparistromaria Ecclimadictyidae Ellipsactinia Forolina Labechiida Lamellata Lamellopora Lithopora Megastroma Milleporidium Mixtusdictyon Myrioporina Paratubuliella Parksia Perplexostroma Plumatalina Praeidiostroma Pseudoactinostroma Reticullina Sergaelites Shirdagopora Siphostroma Sphaeractinia Sporadoporidium Steinerella Stromatoporellata Stromatoporellida Stromatoporellina Stromatoporida Stromatoporina Stromatostroma Syringostromatida Tosastroma Tubuliella Xizangstromatopora
Ecology: stationary epifaunal suspension feeder-photosymbiotic