Schiller, J. in Rabenhorst, L. (ed.) (1937), Dinoflagellatae. Kryptogamen-Flora von Deutschland, Osterreich und der Schweiz Bd 10 Abt 3: 454, fig. 504 [tax. nov.]

• Type locality: Adriatic Sea

Wood, E.J.F. (1963), Dinoflagellates in the Australian region. II – Recent collections. Tech. Pap. Div. Fish. Oceanogr. CSIRO 14: 1–55 [secondary reference]

Hallegraeff, G.M. & Jeffrey, S.W. (1984), Tropical phytoplankton species and pigments of continental shelf waters of north and north-west Australia. Marine Ecology Progress Series 20: 59–74 [secondary reference]

Hallegraeff, G.M. & Reid, D.D. (1986), Phytoplankton species successions and their hydrological environment at a coastal station off Sydney. Austral. J. Mar. Freshw. Res 37: 361–377 [secondary reference]

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

• Comment: This is one of a group of taxa which are morphotypes of O. sceptrum.

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

taxonomic synonym: Oxytoxum nanum Halldal legitimate

• Comment: Synonymy after F.Gómez, A list of free-living dinoflagellate species in the world’s oceans, Acta Bot. Croat. 64: 129–212 (2005)
• APC Comment: P.McCarthy (2012) uses this taxon concept.
• Distribution: Gulf of Carpentaria/North-west Shelf, N.S.W. (off Sydney)
• Ex.distribution: Brazil, Gulf of Mexico, North Atlantic Ocean, Norwegian Sea, Mediterranean Sea, Adriatic Sea, Black Sea, Indian Ocean, East China Sea, SW Pacific Ocean, Southern Ocean (S of Australia), Antarctica, Mexico (Pacific coast), SE Pacific Ocean

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