†family Sigmofungiidae Bedford and Bedford 1936 (archaeocyath sponge)
Archaeocyatha - Archaeocyathida - Sigmofungiidae
Parent taxon: Metacyathoidea according to F. Debrenne and P. D. Kruse 1986
Sister taxa: Copleicyathidae, Jugalicyathidae, Metacyathidae
Subtaxa: none
Ecology: stationary intermediate-level epifaunal suspension feeder
Distribution: there are no occurrences of Sigmofungiidae in the database