†Placohelia Pocta 1887 (stony coral)
Anthozoa - Scleractinia - Rhipidogyridae
Parent taxon: Rhipidogyridae according to H. Eliasova 1991
Sister taxa: Aplosmiliinae, Barysmilia, Bodeurina, Cymosmilia, Ironella, Orbignygyra, Paraacanthogyra, Phytogyra, Pruvostastraea, Psammogyra, Pseudoironella, Psilogyra, Rhipidogyrinae, Rhipidosmilia, Saltocyathus, Somalica, Tiaradendron
Subtaxa: Placohelia rimosa
Type: Placohelia rimosa
Ecology: stationary epifaunal photosymbiotic-suspension feeder