†suborder Archaeocyathina Okulitch 1935 (archaeocyath sponge)
Archaeocyatha - Archaeocyathida
Parent taxon: Archaeocyathida according to F. Debrenne et al. 2015
See also Zhuravleva et al. 1997
Sister taxa: Anthomorphina, Cambrocyathells, Dendrocyathus, Dictyofavina, Loculicyathina, Metyacyathellus, Retillamina, Sphinctocyathus, Syringocnemina, Warrriootacyathus
Subtaxa: Archaeocyathoidea Beltanacyathoidea Dictyocyathoidea Metacyathoidea Naimarkcyathoidea Tabellaecyathoidea Warriootacyathoidea
Ecology: stationary intermediate-level epifaunal suspension feeder