This genus is now the only extant genus in the family Deltocyathiidae. This code is provided for use when identification of a specimen to this level is sufficient, or when no further detail is available.
Kitahara, M.V., Cairns, S.D., 2009. A revision of the genus Deltocyathus Milne Edwards & Haime, 1848 (Scleractinia, Caryophylliidae) from New Caledonia, with description of a new species., Zoosystema, Vol. 31(2): 233-248.