†family Thamnasteriidae Vaughan and Wells 1943 (stony coral)
Parent taxon: Fungiina according to D. Turnsek 1997
Sister taxa: Acrosmiliidae, Agariciicae, Andemantastraeidae, Astraeomorphidae, Astraraeidae, Dermosmiliidae, Fungiacyathidae, Fungiicae, Funginellidae, Haplaraeidae, Kobyastraeidae, Pachyphyllidae, Poriticae, Procyclolitidae, Rhipidastraeidae, Siderastreidae, Synastraeidae
Subtaxa: Corbariastraea, Dendrastrea, Dimorphofungia, Koilomorpha, Polyastropsis, Recticostastraea, Stereocoenia, Substuoresia, Thalamocaeniopsis, Thamnasteria, Thamnasteriamorpha
Ecology: stationary intermediate-level epifaunal photosymbiotic-suspension feeder