Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       naturalia - natural bodies
         Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
           Clade neomura Cavalier-Smith, 1987
             Domain Eukaryota Chatton, 1925 - eukaryotes
               Clade discaria Cavalier-Smith, 2021
                 Clade natates Cavalier-Smith, 2021
                   Clade photaria Cavalier-Smith, 2021
                     Clade eucorta Cavalier-Smith, 2021
                       Superkingdom Corticata Lankester, 1878 - corticates
                         Kingdom Chromista Caval.-Sm. (1981) - chromists
                           Subkingdom Harosa Cavalier-Smith, 2010
                             Clade Sar Adl et al. 2012 [Simpson & Dunthorn 2020]
                               Infrakingdom Halvaria Cavalier-Smith, 2010
                                 Superphylum Alveolata Cavalier-Smith, 1991
                                   Phylum Miozoa Cavalier-Smith, 1987
                                     Subphylum Myzozoa Cavalier-Smith & Chao, 2004
                                       Infraphylum Dinozoa Cavalier-Smith, 1981
                                         Superclass Dinoflagellata Bütschli, 1885
                                           Class Dinophyceae Pascher (1914)
                                             Subclass Peridiniphycidae Fensome, F.J.R. Taylor, G. Norris, Sarjeant, Wharton & G.L. Williams (1993)
                                               Order Peridinialesᵀ Haeckel (1894)
                                                 Family Peridiniaceaeᵀ Ehrenb. (1831)
                                                   Subfamily Peridinioideaeᵀ Bergh (1881)
                                                     Genus Peridiniumᵀ Ehrenb. (1830)
                                                       Peridinium achromaticum
                                                       Peridinium adriaticum Broch, 1910
                                                       Peridinium balticum (Levander) Lernmermann
                                                       Peridinium belizense Carty & Wujek
                                                       Peridinium cinctumᵀ (O.F. Müller) Ehrenberg, 1838
                                                       Peridinium conicum Broch, 1910
                                                       Peridinium gregarium E.H. Lombard & B. Capon
                                                       Peridinium longicollis Pavillard, 1915
                                                       Peridinium minusculum Pavillard, 1917
                                                       Peridinium pusillum Lemmerman, 1901
                                                       Peridinium quinquecorne Abé
                                                       Peridinium spiniferum Schiller, 1935
                                                       Peridinium tenuissimum Kofoid, 1907
                                                       Peridinium umbonatum F. Stein
                                                       Peridinium willei Huitfeld-Kaas, 1900