†family Sphenaulacidae Schrammen 1936 (glass sponge)
Hexactinellida - Hexactinosa - Sphenaulacidae
Parent taxon: Hexactinosa according to W. Wagner 1963
Sister taxa: Aphrocallistidae, Aulocalycidae, Auloplacidae, Caesaria, Carinthiaspongus, Caseispongia, Clavularia, Cribrospongiidae, Cystispongiidae, Emplocidae, Euretidae, Euryplegmatidae, Farreidae, Furcicanalis, Idiodictyon, Imbricareola, Laocaetis, Misonia, Multiloqua, Mysterium, Octobrum, Pileolitoidea, Pillaraspongioidea, Polysyge, Porospongia, Rhogostomium, Rhombedonium, Scopularia, Scotospongia, Staurodermatidae, Tesselispongia, Tremaphorus, Tretodictyidae, Vermifistula, Xenoschrammenus
Subtaxa: none
Ecology: stationary epifaunal suspension feeder
Distribution: there are no occurrences of Sphenaulacidae in the database