Paulsen, O. (1907), The peridiniales of the Danish waters. Meddeleser fra Kommissionen for Havundersogelser. Serie Plankton Bd 1 No 5: 13, fig. 15 [comb. nov.]

basionym: Peridinium steinii f. pyriforme Paulsen legitimate

Balech, E. (1971), Microplancton de la campana oceanografica. Revista del Museo Argentino de Ciencias Naturales Bernardino Rivadavia e instituto nacional de investigacion de las ciencias naturales. Hidrobiologya 3: 100 [nomenclatural synonym]

nomenclatural synonym of: Peridinium pyriforme subsp. pyriforme (Paulsen) Balech legitimate

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

nomenclatural synonym: Peridinium steinii f. pyriforme Paulsen legitimate

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

nomenclatural synonym: Peridinium steinii f. pyriforme Paulsen legitimate

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

nomenclatural synonym of: Protoperidinium pyriforme (Paulsen) Balech legitimate

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

nomenclatural synonym of: Protoperidinium pyriforme (Paulsen) Balech legitimate

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