Demospongiae - Choristida - Helminthophyllidae

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

Sister taxa: Ancorinida, Arthaberia, Cephaloraphiditidae, Craniellida, Fusiferella, Pachastrellida, Plakinida, Scolioraphididae, Ungulaspongia

Subtaxa: Helminthophyllum

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Type: Helminthophyllum

Ecology: stationary intermediate-level epifaunal suspension feeder

Distribution: found only at Hochwang, sponge-microbialite bioherms (Jurassic of Germany)

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