Achradina pulchra Lohmann, 1903 accepted as Monaster rete F.Schütt, 1895 (basis of record)
Actiniscus pentasterias (Ehrenberg) Ehrenberg, 1844 (basis of record)
Adenoides eludens (Herdman) Balech, 1956 (additional source)
Adinimonas oviformis J.Schiller, 1928 (basis of record)
Alexandrium Halim, 1960 (additional source)
Alexandrium affine (H.Inoue & Y.Fukuyo) Balech, 1995 (additional source)
Alexandrium balechii (Steidinger) Balech, 1995 (additional source)
Alexandrium foedum Balech, 1990 (additional source)
Alexandrium leei Balech, 1985 (additional source)
Alexandrium ostenfeldii (Paulsen) Balech & Tangen, 1985 (additional source)
Alexandrium pseudogonyaulax (Biecheler) Horiguchi ex K.Yuki & Y.Fukuyo, 1992 (basis of record)
Alexandrium tamarense (Lebour) Balech, 1995 (additional source)
Amoebophrya ceratii (Koeppen) J.Cachon, 1964 (basis of record)
Amphidiniopsis Woloszynska, 1928 (additional source)
Amphidiniopsis hirsuta (Balech) J.D.Dodge, 1982 (additional source)
Amphidiniopsis kofoidii Wołoszyńska, 1929 (additional source)
Amphidiniopsis swedmarkii (Balech) J.D.Dodge, 1982 (additional source)
Amphidinium acutissimum J.Schiller, 1932 (additional source)
Amphidinium acutum Lohmann, 1920 (additional source)
Amphidinium asymmetricum Kofoid & Swezy, 1921 (additional source)
Amphidinium bipes Herdman, 1924 (additional source)
Amphidinium britannicum (Herdman) Lebour, 1925 accepted as Togula britannica (Herdman) Flø Jørgensen, Shauna Murray & Daugbjerg, 2004 (additional source)
Amphidinium conus J.Schiller, 1928 (additional source)
Amphidinium corpulentum Kofoid & Swezy, 1921 (additional source)
Amphidinium crassum Lohmann, 1908 (additional source)
Amphidinium curvatum J.Schiller, 1928 (additional source)
Amphidinium flagellans J.Schiller, 1928 (additional source)
Amphidinium flexum Herdman, 1923 (additional source)
Amphidinium globosum Schröder, 1911 (additional source)
Amphidinium herdmanii Kofoid & Swezy, 1921 (additional source)
Amphidinium incoloratum P.H.Campbell, 1973 (additional source)
Amphidinium kesselitzii Schiller (additional source)
Amphidinium klebsii Kofoid & Swezy, 1921 (additional source)
Amphidinium lacustre F.Stein, 1883 accepted as Prosoaulax lacustris (F.Stein) Calado & Moestrup, 2005 (additional source)
Amphidinium lanceolatum Schröder, 1911 (additional source)
Amphidinium latum Lebour, 1925 accepted as Nusuttodinium latum (Lebour) Y.Takano & T.Horiguchi, 2014 (additional source)
Amphidinium longum Lohmann, 1908 (additional source)
Amphidinium manannini Herdman, 1924 (additional source)
Amphidinium massartii Biecheler, 1952 (additional source)
Amphidinium operculatum auct. accepted as Amphidinium herdmanii Kofoid & Swezy, 1921 (basis of record)
Amphidinium operculatum Claparède & Lachmann, 1859 (additional source)
Amphidinium ovoideum (Lemmermann) Lemmermann, 1900 (additional source)
Amphidinium ovum E.C.Herdman, 1924 (additional source)
Amphidinium pellucidum E.C.Herdman, 1922 accepted as Gymnodinium venator Flo Jørgensen & Murray, 2004 (additional source)
Amphidinium poecilochroum J.Larsen, 1985 accepted as Nusuttodinium poecilochroum (J.Larsen) Y.Takano & T.Horiguchi, 2014 (additional source)
Amphidinium psittacus Larsen, 1985 (additional source)
Amphidinium scissum Koifoid & Swezy, 1921 (additional source)
Amphidinium sphenoides Wulff, 1919 (additional source)
Amphidinium stigmatum J.Schiller, 1928 (additional source)
Amphidoma Stein, 1883 (additional source)
Amphisolenia bidentata B.Schröder, 1900 (additional source)
Amphisolenia extensa Kofoid, 1907 (additional source)
Amphisolenia globifera F.Stein, 1883 (additional source)
Amphisolenia inflata G.Murray & Whitting, 1899 (additional source)
Amphisolenia palmata F.Stein, 1883 (additional source)
Amphisolenia rectangulata Kofoid, 1907 (additional source)
Amphisolenia schroeteri Kofoid, 1907 (basis of record)
Amphisolenia spinulosa Kofoid, 1907 (additional source)
Amphisolenia truncata Kofoid & J.R.Michener, 1911 (additional source)
Amylax Meunier, 1910 (additional source)
Amylax triacantha (Jørgensen) Sournia, 1984 (additional source)
Archaeosphaerodiniopsis verrucosa Rampi, 1943 (basis of record)
Blepharocysta paulsenii Schiller, 1937 (additional source)
Blepharocysta splendor-maris (Ehrenberg) F.Stein, 1883 (additional source)
Boreadinium pisiforme J.D.Dodge & Hermes, 1981 (basis of record)
Cachonina niei A.R.Loeblich, 1968 accepted as Heterocapsa niei (Loeblich III) Morrill & Loeblich III, 1981 (basis of record)
Cachonodinium caudatum (J.Cachon & M.Cachon) Loeblich III, 1980 (additional source)
Centrodinium complanatum (Cleve) Kofoid, 1907 (additional source)
Centrodinium intermedium Pavillard, 1930 (additional source)
Centrodinium maximum Pavillard, 1930 (additional source)
Ceratium belone Cleve, 1900 accepted as Tripos belone (Cleve) F.Gómez, 2013 (additional source)
Ceratium breve (Ostenfeld & Schmidt) Schröder, 1906 accepted as Tripos brevis (Ostenfeld & Johannes Schmidt) F.Gómez, 2013 (additional source)
Ceratium contrarium (Gourret) Pavillard, 1905 accepted as Tripos contrarius (Gourret) F.Gómez, 2013 (additional source)
Ceratium fusus (Ehrenberg) Dujardin, 1841 accepted as Tripos fusus (Ehrenberg) F.Gómez, 2013 (basis of record)
Ceratium gravidum Gourret, 1883 accepted as Tripos gravidus (Gourret) F.Gómez, 2013 (additional source)
Ceratium hexacanthum Gourret, 1883 accepted as Tripos hexacanthus (Gourret) F.Gómez, 2013 (additional source)
Ceratium horridum (Cleve) Gran, 1902 accepted as Tripos horridus (Cleve) F.Gómez, 2013 (additional source)
Ceratium lineatum (Ehrenberg) Cleve, 1899 accepted as Tripos lineatus (Ehrenberg) F.Gómez, 2013 (basis of record)
Ceratium longirostrum Gourret, 1883 accepted as Tripos longirostrum (Gourret) Hallegraeff & Huisman, 2020 (additional source)
Ceratium massiliense (Gourret) Karsten, 1906 accepted as Tripos massiliensis (Gourret) F.Gómez, 2013 (additional source)
Ceratium pentagonum Gourret, 1883 accepted as Tripos pentagonus (Gourret) F.Gómez, 2013 (additional source)
Ceratium setaceum Jørgensen, 1911 accepted as Tripos setaceus (Jørgensen) F.Gómez, 2013 (additional source)
Ceratium teres Kofoid, 1907 accepted as Tripos teres (Kofoid) F.Gómez, 2013 (additional source)
Ceratium trichoceros (Ehrenberg) Kofoid, 1881 accepted as Tripos trichoceros (Ehrenberg) Gómez, 2013 (additional source)
Ceratium tripos (O.F.Müller) Nitzsch, 1817 accepted as Tripos muelleri Bory de Saint-Vincent, 1826 (additional source)
Ceratocorys armata (Schütt) Kofoid, 1910 (additional source)
Ceratocorys gourretii Paulsen, 1937 (additional source)
Ceratocorys horrida Stein, 1883 (additional source)
Ceratocorys magna Kofoid, 1910 (additional source)
Citharistes regius Stein, 1883 (basis of record)
Cladopyxis brachiolata Stein, 1883 (additional source)
Cladopyxis caryophyllum (Kofoid) Pavillard, 1931 (additional source)
Cladopyxis spinosa (Kofoid) Schiller (additional source)
Clipeodinium Pascher, 1917 (basis of record)
Clipeodinium pileus Pascher (basis of record)
Cochlodinium achromaticum Lebour, 1925 (additional source)
Cochlodinium adriaticum (Schiller) Schiller, 1933 (additional source)
Cochlodinium archimedes (Pouchet) Lemmermann, 1899 (additional source)
Cochlodinium brandtii Wulff, 1916 (additional source)
Cochlodinium cnidophorum Biecheler, 1939 (additional source)