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
[Kingdom Protozoa Goldfuss, 1818 [paraphyletic] - protozoa]
Genus Pseudodidymium R. Michel et al., 2003 [monotypic]
[Pseudodidymium cryptomastigophorumᵀ Michel, Walochnik & Aspöck, 2003]
see Didymium cryptomastigophorum (R. Michel, Walochnik & Aspöck) Fiore-Donno, Kamono & Caval.-Sm. (2010)