†family Polysiphonidae Girty 1909 (demosponge)
Demospongiae - Hadromerida - Polysiphonidae
Full reference: G. H. Girty. 1909. The Guadalupian fauna. United States Geological Survey Professional Paper 58:1-651
Parent taxon: Hadromerida according to R. M. Finks et al. 2004
See also Senowbari-Daryan and Rigby 2015
Sister taxa: Acanthochaetetidae, Cassianothalamiidae, Celyphiidae, Ceotinellidae, Coetinellidae, Ditraenella, Spirastrellidae, Suberitidae
Subtaxa: Arbusculana Polysiphon Zardinia
Ecology: stationary epifaunal suspension feeder
Distribution: