†Allocoenia Etallon 1858 (stony coral)
Anthozoa - Scleractinia - Actinastreidae
Parent taxon: Actinastraeidae according to E. Roniewicz 1976
Sister taxa: Actinastrea, Agrostyliastraea, Allocoeniopsis, Araucanastrea, Chondrocoenia, Coenastraea, Columactinastraea, Floriastrea, Holocoenia, Stelidioseris, Stephanastrea, Texastrea
Subtaxa: Allocoenia plana, Allocoenia trochiformis
Ecology: stationary intermediate-level epifaunal photosymbiotic-suspension feeder