Abratopdinium S. Mao & B.A.R. Mohr, 1992 † (habitat flag source)
Acanthaulax Sarjeant, 1968 † (basis of record)
Acanthaulax Sarjeant, 1968 † (habitat flag source)
Acanthaulax Sarjeant, 1968 † (extant flag source)
Acanthaulax Sarjeant, 1968 † (current name source)
Acanthogonyaulax (Kofoid) Graham, 1942 (extant flag source)
Acanthogonyaulax (Kofoid) Graham, 1942 (basis of record)
Acanthogonyaulax W.A.S. Sarjeant, 1966 † accepted as Acanthaulax Sarjeant, 1968 † (source of synonymy)
Acanthogonyaulax W.A.S. Sarjeant, 1966 † accepted as Acanthaulax Sarjeant, 1968 † (habitat flag source)
Acanthogonyaulax W.A.S. Sarjeant, 1966 † accepted as Acanthaulax Sarjeant, 1968 † (extant flag source)
Acanthogonyaulax W.A.S. Sarjeant, 1966 † accepted as Acanthaulax Sarjeant, 1968 † (basis of record)
Achilleodinium G.L. Eaton, 1976 † (basis of record)
Achilleodinium G.L. Eaton, 1976 † (habitat flag source)
Achilleodinium G.L. Eaton, 1976 † (extant flag source)
Achilleodinium G.L. Eaton, 1976 † (current name source)
Actiniscaceae Kützing, 1845 (current name source)
Actiniscaceae Kützing, 1845 (extant flag source)
Actinotheca I.C. Cookson & A. Eisenack, 1960 † (basis of record)
Actinotheca I.C. Cookson & A. Eisenack, 1960 † (current name source)
Actinotheca I.C. Cookson & A. Eisenack, 1960 † (habitat flag source)
Actinotheca I.C. Cookson & A. Eisenack, 1960 † (extant flag source)
Adnatosphaeridiaceae † (habitat flag source)
Adnatosphaeridiaceae † (extant flag source)
Agerasphaera R. Harland, 1979 † accepted as Alisocysta L.E. Stover & W.R. Evitt, 1978 † (source of synonymy)
Agerasphaera R. Harland, 1979 † accepted as Alisocysta L.E. Stover & W.R. Evitt, 1978 † (basis of record)
Agerasphaera R. Harland, 1979 † accepted as Alisocysta L.E. Stover & W.R. Evitt, 1978 † (habitat flag source)
Agerasphaera R. Harland, 1979 † accepted as Alisocysta L.E. Stover & W.R. Evitt, 1978 † (extant flag source)
Agrosphaera Haeckel ex Lo Bianco, 1903 (current name source)
Agrosphaera Haeckel ex Lo Bianco, 1903 (extant flag source)
Agrosphaera Haeckel ex Lo Bianco, 1903 (basis of record)
Aiora R.J. Davey, 1978 † accepted as Balteocysta L.E. Stover & W.R. Evitt, 1978 † (extant flag source)
Aiora R.J. Davey, 1978 † accepted as Balteocysta L.E. Stover & W.R. Evitt, 1978 † (source of synonymy)
Aiora R.J. Davey, 1978 † accepted as Balteocysta L.E. Stover & W.R. Evitt, 1978 † (basis of record)
Aiora R.J. Davey, 1978 † accepted as Balteocysta L.E. Stover & W.R. Evitt, 1978 † (habitat flag source)
Aireiana I.C. Cookson & A. Eisenack, 1965 † (basis of record)
Aireiana I.C. Cookson & A. Eisenack, 1965 † (current name source)
Aireiana I.C. Cookson & A. Eisenack, 1965 † (extant flag source)
Aireiana I.C. Cookson & A. Eisenack, 1965 † (habitat flag source)
Alaskadinium S. Duxbury, 1977 † accepted as Nelchinopsis V.D. Wiggins, 1972 † (habitat flag source)
Alaskadinium S. Duxbury, 1977 † accepted as Nelchinopsis V.D. Wiggins, 1972 † (source of synonymy)
Alaskadinium S. Duxbury, 1977 † accepted as Nelchinopsis V.D. Wiggins, 1972 † (extant flag source)
Alaskadinium S. Duxbury, 1977 † accepted as Nelchinopsis V.D. Wiggins, 1972 † (basis of record)
Alasphaera H. Keupp, 1979 † (habitat flag source)
Alasphaera H. Keupp, 1979 † (basis of record)
Albertia Vozzhennikova, 1967 † (basis of record)
Albertia Vozzhennikova, 1967 † (habitat flag source)
Albertia Vozzhennikova, 1967 † (source of synonymy)
Albertia Vozzhennikova, 1967 † (extant flag source)
Aldorfia L.E. Stover & W.R. Evitt, 1978 (habitat flag source)
Algidasphaeridium Matsuoka & Bujak, 1988 † (extant flag source)
Algidasphaeridium Matsuoka & Bujak, 1988 † (basis of record)
Algidasphaeridium Matsuoka & Bujak, 1988 † (name verified source)
Algidasphaeridium Matsuoka & Bujak, 1988 † (current name source)
Alisocysta L.E. Stover & W.R. Evitt, 1978 † (current name source)
Alisocysta L.E. Stover & W.R. Evitt, 1978 † (basis of record)
Alisocysta L.E. Stover & W.R. Evitt, 1978 † (extant flag source)
Alisocysta L.E. Stover & W.R. Evitt, 1978 † (habitat flag source)
Alisogymnium J.K. Lentin & T.F. Vozzhennikova, 1990 † (basis of record)
Alisogymnium J.K. Lentin & T.F. Vozzhennikova, 1990 † (extant flag source)
Alisogymnium J.K. Lentin & T.F. Vozzhennikova, 1990 † (habitat flag source)
Alisogymnium J.K. Lentin & T.F. Vozzhennikova, 1990 † (current name source)
Alterbia J.K. Lentin & G.L. Williams, 1976 † (basis of record)
Alterbia J.K. Lentin & G.L. Williams, 1976 † (current name source)
Alterbia J.K. Lentin & G.L. Williams, 1976 † (extant flag source)
Alterbia J.K. Lentin & G.L. Williams, 1976 † (habitat flag source)
Alterbia J.K. Lentin & G.L. Williams, 1977 † accepted as Alterbidinium J.K. Lentin & G.L. Williams, 1985 † (source of synonymy)
Alterbidinium J.K. Lentin & G.L. Williams, 1985 † (current name source)
Alterbidinium J.K. Lentin & G.L. Williams, 1985 † (basis of record)
Alterbidinium J.K. Lentin & G.L. Williams, 1985 † (habitat flag source)
Alterbidinium J.K. Lentin & G.L. Williams, 1985 † (extant flag source)
Ambonosphaera R.A. Fensome, 1979 † (habitat flag source)
Ambonosphaera R.A. Fensome, 1979 † (basis of record)
Ambonosphaera R.A. Fensome, 1979 † (extant flag source)
Ambonosphaera R.A. Fensome, 1979 † (current name source)
Amoebophryaceae (extant flag source)
Amoebophryaceae (current name source)
Amoebophryaceae (habitat flag source)
Amphidiadema I.C. Cookson & A. Eisenack, 1960 † (habitat flag source)
Amphidiadema I.C. Cookson & A. Eisenack, 1960 † (extant flag source)
Amphidiadema I.C. Cookson & A. Eisenack, 1960 † (basis of record)
Amphidiadema I.C. Cookson & A. Eisenack, 1960 † (current name source)
Amphigymnium J.K. Lentin & T.F. Vozzhennikova, 1990 † (current name source)
Amphigymnium J.K. Lentin & T.F. Vozzhennikova, 1990 † (basis of record)
Amphigymnium J.K. Lentin & T.F. Vozzhennikova, 1990 † (habitat flag source)
Amphigymnium J.K. Lentin & T.F. Vozzhennikova, 1990 † (extant flag source)
Amphilothus Kofoid ex Poche, 1913 accepted as Monaster Schütt, 1895 (source of synonymy)
Amphisoleniaceae (current name source)
Amphisoleniaceae (extant flag source)
Amphitholaceae accepted as Amphilothaceae (basis of record)
Amphitholaceae accepted as Amphilothaceae (source of synonymy)
Amphitholaceae accepted as Amphilothaceae (extant flag source)
Amphitholus F. Schütt, 1895 accepted as Monaster Schütt, 1895 (extant flag source)
Amphitholus F. Schütt, 1895 accepted as Monaster Schütt, 1895 (habitat flag source)
Amphitholus F. Schütt, 1895 accepted as Monaster Schütt, 1895 (basis of record)
Amphorosphaeridium R.J. Davey, 1969 † (extant flag source)
Amphorosphaeridium R.J. Davey, 1969 † (current name source)
Amphorosphaeridium R.J. Davey, 1969 † (basis of record)
Amphorosphaeridium R.J. Davey, 1969 † (habitat flag source)
Andreedinium R. Below, 1987 † (habitat flag source)
Andreedinium R. Below, 1987 † (extant flag source)

 Taxonomic remark

 for Sicyoideum C.-Q. He, 1980 †

Listed under "questionable dinoflagellates" in Fensome et al., 1993, no record in Williams et al., DINOFLAJ3 (2017). [details]