†family Cystothalamiidae Girty 1908 (calcareous sponge)
Full reference: G. H. Girty. 1908. The Guadalupian fauna. United States Geological Survey Professional Paper 58:1-651
Parent taxon: Calcarea according to W. Kiessling 2003
See also Rigby and Potter 1986 and Rigby et al. 1988
Sister taxa: Aporata, Aspiculata, Aulocyclus, Aulospongia, Bellidispongia, Calcaronea, Calcinea, Clifdenella, Faniathalamia, Fistulisponga, Follicalena, Gravestockia, Nibionia, Paruvanella, Porata, Pseudodictyocoelia, Rahbahthalmia, Wanella, Zigzagella, Gaspespongia, Faretronida
Subtaxa: none
Ecology: stationary intermediate-level epifaunal suspension feeder
Distribution: there are no occurrences of Cystothalamiidae in the database