Acabaria Gray, 1859 accepted as Melithaea Milne Edwards, 1857 (basis of record)
Acanella Gray, 1870 (basis of record)
Acanella Gray, 1870 (extant flag source)
Acanthacis Deichmann, 1936 (extant flag source)
Acanthacis Deichmann, 1936 (basis of record)
Acanthoisis Studer, 1887 (extant flag source)
Acanthoisis Studer, 1887 (basis of record)
Acanthomuricea Hentschel, 1903 (extant flag source)
Acanthomuricea Hentschel, 1903 (basis of record)
Acrophytum Hickson, 1900 (basis of record)
Acrophytum Hickson, 1900 (extant flag source)
Adelogorgia Bayer, 1958 (basis of record)
Adelogorgia Bayer, 1958 (extant flag source)
Agaricoides Simpson, 1905 (extant flag source)
Agaricoides Simpson, 1905 (basis of record)
Aglaoprimnoa Bayer, 1996 (extant flag source)
Aglaoprimnoa Bayer, 1996 (basis of record)
Ainigmaptilon Dean, 1926 (extant flag source)
Ainigmaptilon Dean, 1926 (basis of record)
Alertigorgia Kükenthal, 1908 (extant flag source)
Alertigorgia Kükenthal, 1908 (basis of record)
Amphilaphis Studer & Wright in Studer, 1887 accepted as Thouarella Gray, 1870 (basis of record)
Amphilaphis Studer & Wright in Studer, 1887 accepted as Thouarella Gray, 1870 (extant flag source)
Annella Gray, 1858 (basis of record)
Annella Gray, 1858 (extant flag source)
Anthomuricea Studer, 1887 (extant flag source)
Anthomuricea Studer, 1887 (basis of record)
Anthoplexaura Kükenthal, 1908 (basis of record)
Anthoplexaura Kükenthal, 1908 (extant flag source)
Armadillogorgia Bayer, 1980 (extant flag source)
Armadillogorgia Bayer, 1980 (basis of record)
Arthrogorgia Kükenthal in Kükenthal & Gorzawsky, 1908 (basis of record)
Arthrogorgia Kükenthal in Kükenthal & Gorzawsky, 1908 (extant flag source)
Asterospicularia Utinomi, 1951 (extant flag source)
Asterospicularia Utinomi, 1951 (basis of record)
Astrogorgia Verrill, 1868 (basis of record)
Astrogorgia Verrill, 1868 (extant flag source)
Astromuricea Germanos, 1895 (extant flag source)
Astromuricea Germanos, 1895 (basis of record)
Australisis Bayer & Stefani, 1987 (basis of record)
Australisis Bayer & Stefani, 1987 (extant flag source)
Bathytelesto Bayer, 1981 (basis of record)
Bathytelesto Bayer, 1981 (extant flag source)
Bayerxenia Alderslade, 2001 (basis of record)
Bayerxenia Alderslade, 2001 (extant flag source)
Bellonella Gray, 1862 (basis of record)
Bellonella Gray, 1862 (extant flag source)
Briareopsis Bayer, 1993 (extant flag source)
Briareopsis Bayer, 1993 (basis of record)
Calcigorgia Broch, 1935 (extant flag source)
Calcigorgia Broch, 1935 (basis of record)
Caliacis Deichmann, 1936 (extant flag source)
Caliacis Deichmann, 1936 (basis of record)
Calibelemnon Nutting, 1908 (extant flag source)
Calibelemnon Nutting, 1908 (basis of record)
Calicogorgia Thomson & Henderson, 1906 (basis of record)
Calicogorgia Thomson & Henderson, 1906 (extant flag source)
Callipodium Verrill, 1876 (extant flag source)
Callipodium Verrill, 1876 (basis of record)
Callozostron Wright, 1885 (basis of record)
Callozostron Wright, 1885 (extant flag source)
Calyptrophora Gray, 1866 (extant flag source)
Calyptrophora Gray, 1866 (basis of record)
Capnella Gray, 1869 (basis of record)
Capnella Gray, 1869 (extant flag source)
Caribisis Bayer & Stefani, 1987 (basis of record)
Caribisis Bayer & Stefani, 1987 (extant flag source)
Carijoa F. Müller, 1867 (basis of record)
Carijoa F. Müller, 1867 (extant flag source)
Carotalcyon Utinomi, 1952 (extant flag source)
Carotalcyon Utinomi, 1952 (basis of record)
Ceratocaulon Jungersen, 1892 (basis of record)
Ceratocaulon Jungersen, 1892 (extant flag source)
Cespitularia Milne Edwards & Haime, 1850 (extant flag source)
Cespitularia Milne Edwards & Haime, 1850 (basis of record)
Chalcogorgia Bayer, 1949 (basis of record)
Chalcogorgia Bayer, 1949 (extant flag source)
Chathamisis Grant, 1976 (basis of record)
Chathamisis Grant, 1976 (extant flag source)
Chelidonisis Studer, 1890 (basis of record)
Chelidonisis Studer, 1890 (extant flag source)
Chironephthya Studer, 1887 (extant flag source)
Chironephthya Studer, 1887 (basis of record)
Chondronephthya Utinomi, 1960 (extant flag source)
Chondronephthya Utinomi, 1960 (basis of record)
Circinisis Grant, 1976 (extant flag source)
Circinisis Grant, 1976 (basis of record)
Cladiella Gray, 1869 (extant flag source)
Cladiella Gray, 1869 (basis of record)
Clavularia Blainville, 1830 (extant flag source)
Clavularia Blainville, 1830 (basis of record)
Convexella Bayer, 1996 (extant flag source)
Convexella Bayer, 1996 (basis of record)
Coronephthya Utinomi, 1962 accepted as Coronephthya Utinomi, 1966 (extant flag source)
Coronephthya Utinomi, 1962 accepted as Coronephthya Utinomi, 1966 (basis of record)
Cryptophyton Williams, 2000 (extant flag source)
Cryptophyton Williams, 2000 (basis of record)
Ctenocella Valenciennes, 1855 (basis of record)
Ctenocella Valenciennes, 1855 (extant flag source)
Cyathopodium Verrill, 1868 (basis of record)