Foslie, M. (1907), Algologiske notiser. IV. Det Kongelige Norske Videnskaberne Selskabs Skrifter 1907 (6): 24-25 [tax. nov.]

• Type locality: Montego Bay, Jamaica (Howe, nr. 4760b).
• Type specimen: HOLOTYPE: Trondheim: Howe # 4760b

Foslie, M. (1909), Algologiske notiser VI. Det Kongelige Norske Videnskaberne Selskabs Skrifter 1909 (2): 55 [basionym]

basionym of: Hydrolithon improcerum (Foslie & M.Howe) Foslie legitimate

Howe, M.A. in Britton, N.L. & Millspaugh, C.F. (1920), Algae. The Bahama Flora: 587 [basionym]

basionym of: Porolithon improcerum (Foslie & M.Howe) M.Howe legitimate

Townsend, R.A. & Adey, W.H. (1990), Morphology of the Caribbean Alga: Goniolithon improcerum Foslie et Howe in Foslie (Corallinaceae, Rhodophyceae). Botanica Marina 33: - [secondary reference]

Penrose, D.L. in Womersley, H.B.S. (1996), Hydrolithon, Pneophyllum, Spongites & Neogoniolithon. The Marine Benthic Flora of Southern Australia. Part IIIB: - [nomenclatural synonym]

nomenclatural synonym of: Hydrolithon improcerum (Foslie & M.Howe) Foslie legitimate

ABRS (2011), Australian Algal Name Index Edn. 2011: - [secondary reference]

• Comment: Type is illustrated in Printz 1929 M. Foslie. Contributions to a monograph of the Lithothamnia with 75 plates after the authors death collected and edited by Henrik Printz pl. LII figs 12, 13.

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