†family Membranacyathidae Debrenne et al. 2002 (archaeocyath sponge)
Archaeocyatha - Ajacicyathida - Membranacyathidae
Parent taxon: Kasyricyathoidea according to F. Debrenne et al. 2015
Sister taxa: Agyrekocyathidae, Kasyricyathidae, Xestecyathidae
Subtaxa: Membranacyathus
Type: Membranacyathus
Ecology: stationary intermediate-level epifaunal suspension feeder
Distribution:
• Cambrian of the Russian Federation (3 collections)
Total: 3 collections each including a single occurrence