ammonites
Norfordia Rigby and Harris 1979 (glass sponge)

Hexactinellida - Reticulosa - Dictyospongiidae

Full reference: J. K. Rigby and D. R. Harris. 1979. A new Silurian sponge fauna from northern British Columbia, Canada. Journal of Paleontology 53(4):968-980

Parent taxon: Dictyospongiidae according to J. K. Rigby and D. R. Harris 1979

Sister taxa: Calathospongiinae, Diagonodictya, Dictyospongiinae, Hydnoceratinae, Microstaurella, Thysanodictyinae, Tiddalickia

Subtaxa: Norfordia gabrielsei

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Type: Norfordia gabrielsei

Ecology: stationary epifaunal suspension feeder