Parent taxon: Porifera according to C. W. Stearn et al. 1999
See also Sepkoski 2002
Sister taxa: Adriatella, Aetholicopalla, Alasonia, Aphlebospongia, Archaeocyatha, Ascarum, Asteriscosella, Astrostylopsis, Axiotubullina, Bacatocyathus, Bicyathus, Bornium, Bortepesia, Calcarea, Cassianostroma, Ceraostroma, Circopora, Clathrispongia, Codites, Coenostella, Concretum, Coniatopenia, Cornuaspongia, Coronacollina, Cotyliscus, Cribricyatha, Cribroscyphia, Crisantum, Cuneiphycus, Cupulochonia, Cupulospongia, Cyclospongia, Cylicopsis, Cystiphyllum adrianense, Demospongiae, Dendropora mirfia, Desmopora, Diestosphecion, Diplostomella, Disjectoporidae, Disparistromaria, Dulmius, Dulmius innovatus, Dyocopanon, Ellipsactinia, Encrinites apiosus, Encrinites disculus, Encrinites mirus, Encrinites nudus, Encrinites patiens, Encrinites perminutus, Encrinites praedominans, Encrinites praedominans alternatus, Encrinites quaesitus, Encrinites regularis, Encrinites tolomeus, Eocoryne, Eocyathispongia, Fedomia, Floriana, Glenodictyum, Helicolocellus, Heteractinida, Hexactinellida, Holocoelia, Homoscleromorpha, Idromecrinus, Lamellata, Lamellispongia, Limnoretheles, Lithopora, Megalelasma, Megastroma, Microcoryne, Milleporidium, Mirmus, Monotheles, Myrioporina, Nabaviella, Nelumbosium, Nelumbosium primum, Oligoplagia, Palaeophragmodictya, Paratubuliella, Parksia, Pharetronida, Pilosphecion, Plectinia, Polyactinellidae, Polycnemiseudea, Psephidia, Pulchrilaminida, Puppispongia, Puppispongia prostrema, Radicispongia, Rauffia, Reticullina, Rimpia, Rosellatana, Rugoconites, Scillus, Sclerospongiae, Scribroporella, Scyphia, Shitangspongia, Sinoflabrum, Siphonia permiana, Siphonia permiana elongatiuscula, Siphonia permiana ovoidalis, Siphonia permiana piriformis, Siphostroma, Sparsispongia, Sphaeractinia, Sphinctozoa, Spirocyathidae, Spongites lementarius, Spongites oculatus, Sporadoporidium, Steinerella, Stromatofungia, Stromatoporellata, Stromatoporellina, Stromatoporina, Stromatostroma, Taraxaculum, Textispongia, Thalamospongia, Thectardis, Toriscodermia, Tosastroma, Tragos, Trammeria, Tubispongia, Tubuliella, Virmula, Xizangstromatopora
Subtaxa: Actinostromatida Amphiporida Andenipora Clathrodictyida Clavidictyon Diparistomaria Ecclimadictyidae Forolina Labechiida Lamellopora Mixtusdictyon Perplexostroma Plumatalina Praeidiostroma Pseudoactinostroma Sergaelites Shirdagopora Stromatoporellida Stromatoporida Syringostromatida