†Baccispongia (glass sponge)
Parent taxon: Hexactinellida according to J. J. Sepkoski 2002
Sister taxa: Acanothyra, Amphidiscosa, Antrispongia, Australispongia, Azyrtalia, Bothroconis, Chelispongia, Chirospongia, Crucispongia, Diplopleura, Farreopsis, Gonamispongia, Hemidiagoniella, Hemidiscosa, Hexasterophora, Hintzesnonaia, Hodsia, Kometia, Konyrium, Krainerella, Lychniscosa, Lysactinella, Lyssacinosa, Lyssakida, Nephelispongia, Pachylepisma, Pinnatispongia, Reticulosa, Silicunculus, Solusrectus, Stiodermiella, Stromatidiidae, Testiispongia, Textispongia, Uralonema
Subtaxa: none
Ecology: stationary intermediate-level epifaunal suspension feeder