Jørgensen, E. (1920), Mediterranean Ceratia. Report of the Danish Oceanographic Expedition to the Mediterranean 1908-1910 to the Mediterranean and Adjacent Seas II (Biol.) J. 1: 26, fig 15 [tax. nov.]

replaced synonym: Ceratium pentagonum Gourret legitimate

• Type locality: east of Sardinia

Steemann-Neilsen, E. (1934), Untersuchungen uber die Verbreitung, Biologie und Variation der Ceratien im sudlichen Stillen Ozean. Dana Reports No. 4: 11 [basionym]

basionym of: Ceratium subrobustum (Jørg.) Steem.Niels. legitimate

Huisman, J.M. (1989), The genus Ceratium (Dinophyceae) in Bass Strait and adjoining waters, southern Australia. Australian Systematic Botany 2: - [taxonomic synonym]

taxonomic synonym of: Ceratium pentagonum var. robustum (Cleve) Jørg. legitimate

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

Algal Subcommittee (2021), CHAH Algal Subcommittee: - [taxonomic synonym]

taxonomic synonym of: Tripos pentagonus (Gourret) F.Gómez legitimate

Guiry, M.D. & Guiry, G M. (2021), -. Algaebase web site: www.algaebase.org: - [taxonomic synonym]

taxonomic synonym of: Tripos pentagonus (Gourret) F.Gómez legitimate

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