Hexactinellida - Reticulosa - Dictyospongiidae

Full reference: J. K. Rigby and D. Collins. 2004. Sponges of the Middle Cambrian Burgess Shale and Stephen Formations, British Columbia. Royal Ontario Museum Contributions in Science 1:1-155

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

Sister taxon: Hydnoangulus

Subtaxa: Protoprisma annulata

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Type: Protoprisma annulata

Ecology: stationary epifaunal suspension feeder