Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       naturalia - natural bodies
         [crown] Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
           Clade neomura Cavalier-Smith, 1987
             Domain Eukaryota Chatton, 1925 - eukaryotes
               "protists" incertae sedis
                 Group †Acritarcha Evitt, 1963, incertae sedis [polyphyletic] - acritarchs
                   Genus †Dorsennidium Wicander, 1974
                     †Dorsennidium europaeum (Stockmans & Willière, 1960) Sarjeant & Stancliffe (1994)
                       †Dorsennidium europaeum subsp. europaeumᵀ (Stockmans & Willière, 1960) Sarjeant & Stancliffe (1994)
                       †Dorsennidium europaeum subsp. quintum G.L. Mullins (2004)
                       †Dorsennidium europaeum subsp. wenlockianum (Downie, 1959 ex Wall & Downie, 1963) Sarjeant & Stancliffe (1994)