†family Tropiastreidae Cuif 1977 (stony coral)
Parent taxon: Archaeofungiina according to D. Turnsek 1997
Sister taxa: Conophyllidae, Cuifastraeidae, Cyclophyllopsiidae, Guembelastraeidae
Subtaxa: Thamnotropis, Tropidendron
Ecology: stationary intermediate-level epifaunal microcarnivore-photosymbiotic