Abedinium Loeblich & A.R.Loeblich, 1966 (basis of record)
Abedinium Loeblich & A.R.Loeblich, 1966 (source of synonymy)
Abedinium dasypus (Cachon & Cachon-Enjumet) Loeblich Jr & Loeblich III, 1966 (basis of record)
Abedinium dasypus (Cachon & Cachon-Enjumet) Loeblich Jr & Loeblich III, 1966 (source of synonymy)
Achradina Lohmann, 1902 (basis of record)
Achradina pulchra Lohmann, 1903 accepted as Monaster rete F.Schütt, 1895 (additional source)
Actiniscaceae Kützing, 1844 (basis of record)
Actiniscales (basis of record)
Actiniscus Ehrenberg, 1841 (basis of record)
Actiniscus pentasterias (Ehrenberg) Ehrenberg, 1844 (additional source)
Adenoides Balech, 1956 (basis of record)
Adenoides eludens (Herdman) Balech, 1956 (basis of record)
Adenoides kofoidii (Herdman) J.D.Dodge, 1982 accepted as Pseudadenoides kofoidii (Herdman) F.Gómez, R. Onuma, Artigas & Horiguchi, 2015 (basis of record)
Adinimonas J.Schiller, 1928 (basis of record)
Akashiwo G.Hansen & Moestrup, 2000 (basis of record)
Akashiwo sanguinea (K.Hirasaka) Gert Hansen & Moestrup, 2000 (basis of record)
Alexandrium Halim, 1960 (basis of record)
Alexandrium angustitabulatum F.J.R.Taylor, 1995 accepted as Alexandrium minutum Halim, 1960 (basis of record)
Alexandrium angustitabulatum F.J.R.Taylor, 1995 accepted as Alexandrium minutum Halim, 1960 (source of synonymy)
Alexandrium balechii (Steidinger) Balech, 1995 (basis of record)
Alexandrium catenella (Whedon & Kofoid) Balech, 1985 (basis of record)
Alexandrium foedum Balech, 1990 (basis of record)
Alexandrium fundyense Balech, 1985 accepted as Alexandrium catenella (Whedon & Kofoid) Balech, 1985 (basis of record)
Alexandrium leei Balech, 1985 (basis of record)
Alexandrium monilatum (J.F.Howell) Balech, 1995 (basis of record)
Alexandrium monilatum (J.F.Howell) Balech, 1995 (additional source)
Alexandrium ostenfeldii (Paulsen) Balech & Tangen, 1985 (basis of record)
Alexandrium ostenfeldii (Paulsen) Balech & Tangen, 1985 (source of synonymy)
Alexandrium tamarense (Lebour) Balech, 1995 (basis of record)
Alexandrium taylori Balech, 1994 accepted as Alexandrium taylorii Balech, 1994 (basis of record)
Amphidiniopsis Woloszynska, 1928 (basis of record)
Amphidiniopsis hirsuta (Balech) J.D.Dodge, 1982 (basis of record)
Amphidiniopsis kofoidii Wołoszyńska, 1929 (basis of record)
Amphidiniopsis swedmarkii (Balech) J.D.Dodge, 1982 (basis of record)
Amphidinium Claperède & Lachmann, 1859 (basis of record)
Amphidinium acutissimum J.Schiller, 1932 (basis of record)
Amphidinium acutissimum J.Schiller, 1932 (source of synonymy)
Amphidinium acutum Lohmann, 1920 (basis of record)
Amphidinium asymmetricum Kofoid & Swezy, 1921 (basis of record)
Amphidinium asymmetricum var. britannicum Herdman, 1922 accepted as Togula britannica (Herdman) Flø Jørgensen, Shauna Murray & Daugbjerg, 2004 (basis of record)
Amphidinium asymmetricum var. britannicum Herdman, 1922 accepted as Togula britannica (Herdman) Flø Jørgensen, Shauna Murray & Daugbjerg, 2004 (source of synonymy)
Amphidinium bipes Herdman, 1924 (basis of record)
Amphidinium britannicum (Herdman) Lebour, 1925 accepted as Togula britannica (Herdman) Flø Jørgensen, Shauna Murray & Daugbjerg, 2004 (basis of record)
Amphidinium conus J.Schiller, 1928 (basis of record)
Amphidinium corpulentum Kofoid & Swezy, 1921 (basis of record)
Amphidinium crassum Lohmann, 1908 (basis of record)
Amphidinium curvatum J.Schiller, 1928 (basis of record)
Amphidinium flagellans J.Schiller, 1928 (basis of record)
Amphidinium flexum Herdman, 1923 (basis of record)
Amphidinium glabrum M.Hoppenrath & Y.B.Okolodkov, 2000 accepted as Apicoporus glaber (M.Hoppenrath & Okolodkov) S.F.Sparmann, B.S.Leander & M.Hoppenrath, 2008 (basis of record)
Amphidinium glaucum W.Conrad, 1926 (basis of record)
Amphidinium globosum Schröder, 1911 (basis of record)
Amphidinium herdmanii Kofoid & Swezy, 1921 (basis of record)
Amphidinium hoefleri Schiller & Diskus, 1955 accepted as Amphidinium massartii Biecheler, 1952 (basis of record)
Amphidinium hoefleri Schiller & Diskus, 1955 accepted as Amphidinium massartii Biecheler, 1952 (source of synonymy)
Amphidinium incoloratum P.H.Campbell, 1973 (basis of record)
Amphidinium klebsii Kofoid & Swezy, 1921 (basis of record)
Amphidinium klebsii Kofoid & Swezy, 1921 (source of synonymy)
Amphidinium lacustre F.Stein, 1883 accepted as Prosoaulax lacustris (F.Stein) Calado & Moestrup, 2005 (basis of record)
Amphidinium lacustriforme J.Schiller, 1928 accepted as Prosoaulax lacustris (F.Stein) Calado & Moestrup, 2005 (basis of record)
Amphidinium lacustriforme J.Schiller, 1928 accepted as Prosoaulax lacustris (F.Stein) Calado & Moestrup, 2005 (source of synonymy)
Amphidinium lanceolatum Schröder, 1911 (basis of record)
Amphidinium latum Lebour, 1925 accepted as Nusuttodinium latum (Lebour) Y.Takano & T.Horiguchi, 2014 (basis of record)
Amphidinium longum Lohmann, 1908 (basis of record)
Amphidinium manannini Herdman, 1924 (basis of record)
Amphidinium massartii Biecheler, 1952 (basis of record)
Amphidinium operculatum Claparède & Lachmann, 1859 (basis of record)
Amphidinium ovoideum (Lemmermann) Lemmermann, 1900 (basis of record)
Amphidinium ovum E.C.Herdman, 1924 (basis of record)
Amphidinium pelagicum Lebour, 1925 (basis of record)
Amphidinium pellucidum E.C.Herdman, 1922 accepted as Gymnodinium venator Flo Jørgensen & Murray, 2004 (basis of record)
Amphidinium poecilochroum J.Larsen, 1985 accepted as Nusuttodinium poecilochroum (J.Larsen) Y.Takano & T.Horiguchi, 2014 (basis of record)
Amphidinium psittacus Larsen, 1985 (basis of record)
Amphidinium rhynchocephalum Anisimova, 1926 (basis of record)
Amphidinium rhynchocephalum Anisimova, 1926 (source of synonymy)
Amphidinium schroederii Schiller, 1928 accepted as Amphidinium schroederi J.Schiller, 1928 (basis of record)
Amphidinium schroederii Schiller, 1928 accepted as Amphidinium schroederi J.Schiller, 1928 (source of synonymy)
Amphidinium scissum Koifoid & Swezy, 1921 (basis of record)
Amphidinium semilunatum Herdman, 1924 accepted as Ankistrodinium semilunatum (Herdman) Hoppenrath, Shauna Murray, Sparmann & Leander, 2012 (basis of record)
Amphidinium sphenoides Wulff, 1919 (basis of record)
Amphidinium stigmatum J.Schiller, 1928 (basis of record)
Amphidinium subsalum Biecheler, 1952 accepted as Amphidinium pellucidum E.C.Herdman, 1922 accepted as Gymnodinium venator Flo Jørgensen & Murray, 2004 (basis of record)
Amphidinium subsalum Biecheler, 1952 accepted as Amphidinium pellucidum E.C.Herdman, 1922 accepted as Gymnodinium venator Flo Jørgensen & Murray, 2004 (source of synonymy)
Amphidinium testudo E.C.Herdman, 1924 accepted as Testudodinium testudo (Herdman) Horiguchi, Tamura, Katsumata & A.Yamaguchi, 2012 (basis of record)
Amphidoma Stein, 1883 (basis of record)
Amphidoma caudata Halldal, 1953 accepted as Azadinium caudatum (Halldal) Nézan & Chomérat, 2012 (basis of record)
Amphidomataceae Sournia, 1984 (basis of record)
Amphisolenia Stein, 1883 (basis of record)
Amphisolenia bidentata B.Schröder, 1900 (basis of record)
Amphisolenia brevicauda Kofoid, 1907 (basis of record)
Amphisolenia extensa Kofoid, 1907 (basis of record)
Amphisolenia globifera F.Stein, 1883 (basis of record)
Amphisolenia inflata G.Murray & Whitting, 1899 (basis of record)
Amphisolenia palmata F.Stein, 1883 (basis of record)
Amphisolenia rectangulata Kofoid, 1907 (basis of record)
Amphisolenia spinulosa Kofoid, 1907 (basis of record)
Amphisolenia spinulosa Kofoid, 1907 (source of synonymy)
Amphisolenia truncata Kofoid & J.R.Michener, 1911 (basis of record)
Amylax Meunier, 1910 (basis of record)
Amylax buxus (Balech) J.D.Dodge, 1989 accepted as Amylax triacantha var. buxus (Balech) Gárate-Lizárraga, 2014 (basis of record)

 Classification

 for Diplopsalopsis Meunier, 1910

According to Hansson, Diplosalopsis should be included in the Protoperidiniaceae family [details]