living organisms see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Superkingdom Eukaryotae see Domain Eukaryota Chatton, 1925
     Kingdom Plantae Haeckel (1866) - plants
       Subkingdom Thallobionta
         Division Chromophycota see Phylum Chromophyta T.A.Chr. (1962), nom. nud.
           Class Dinophyceae Pascher (1914)
             Subclass Dinophycidae see Class Dinophyceae Pascher (1914)
               Order Peridiniales Haeckel (1894)
                 Family Gonyaulacaceae Er. Lindem. (1928)
                   Genus Amphidoma F. Stein (1883)
                   Genus Gessnerium Halim (1969) see Genus Alexandrium Halim (1960)
                   Genus Gonyaulax Diesing (1866)
                   Genus Protoceratium Bergh (1881)
                   Genus Pyrodinium L. Plate (1906)
                   Genus Thompsodinium Bourr. (1970)