Jørgensen, E. (1900), Protophyten und Protozoen im Plankton aus der norwegischen West-Küste. Bergens Museums Aarbog VI: 38 [tax. nov.]

nomenclatural synonym: Peridinium michaelis F.Stein nom. illeg.

• Comment: New name for P. michaelis F.Stein non Ehrenb.
• Type locality: Norway

Kofoid, C.A. (1909), On Peridinium steini Jorgesen, with a note on the nomenclature of the skeleton of the Peridinidae. Archiv für Protistenkunde 16: 39 [secondary reference]

taxonomic synonym: Peridinium michaelis Ehrenb. legitimate pro parte taxonomic synonym: Peridinium michaelis F.Stein nom. illeg.

Wood, E.J.F. (1954), Dinoflagellates of the Australian region. Australian Journal of Marine and Freshwater Research 5: 240 [secondary reference]

taxonomic synonym: Peridinium pellucidum Ramsay-Wright nom. illeg. taxonomic synonym: Peridinium steinii subsp. paulseni Kof. legitimate doubtful taxonomic synonym: Peridinium micrapium Meunier legitimate

Balech, E. (1974), El genero Protoperidinium Bergh, 1881 (Peridinium Ehrenberg 1831, partim). Revista del Museo Argentino de Ciencias Naturales Bernardino Rivadavia e instituto nacional de investigacion de las ciencias naturales. Hidrobiologya 4 (1): 63 [basionym]

basionym of: Protoperidinium steinii (Jørg.) Balech legitimate

Throndsen, J., Hasle, G.R. & Tangen, K. (2003), Norsk Kystplankton Flora: - [secondary reference]

Throndsen, J., Hasle, G.R. & Tangen, K. (2003), Norsk Kystplankton Flora: - [nomenclatural synonym]

nomenclatural synonym of: Protoperidinium steinii (Jørg.) Balech legitimate

ABRS (2008), Australian Algal Name Index Edn. 2008: - [secondary reference]

• Comment: See also Bohm 1936 Bishop Museum Bull No 137 p. 40

McCarthy, P. (Comp.) (2012), Census of Australian Marine Dinoflagellates: - [nomenclatural synonym]

nomenclatural synonym of: Protoperidinium steinii (Jørg.) Balech legitimate

Guiry, M.D. & Guiry, G M. (2022), -. Algaebase web site: www.algaebase.org: - [nomenclatural synonym]

nomenclatural synonym of: Protoperidinium steinii (Jørg.) Balech legitimate

---