Parent taxon: Porifera according to W. King 1850

Sister taxa: Archaeocyatha, Calcarea, Caliculospongia, Clathrispongia, Coronacollina, Cotyliscus, Cuneiphycus, Cyathophyscus, Cyclospongia, Demospongea, Disjectoporidae, Drosdovia, Eocoryne, Glenodictyum, Heteractinida, Hexactinellida, Holocoelia, Matthewcyathus, Megalelasma, Microcoryne, Mussooriella, Nabaviella, Nostrocyathus, Oligoplagia, Phymoraphinia, Polyactinellidae, Scyphia, Shitangspongia, Sinoflabrum, Solactiniella, Stromatoporoidea, Trammeria

Subtaxa: Tragos binneyi, Tragos tunstallensis

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Ecology: stationary epifaunal suspension feeder