Gordon, E.M. (1972), Comparative morphology and taxonomy of the Wrangelieae, Sphondylothamnieae and Spermothamnieae (Ceramiaceae, Rhodophyta). Australian Journal of Botany. Supplementary Series 4: 135 [tax. nov.]

• Type: Interthamnion attenuatum Gordon-Mills

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

• APC Comment: R.Cowan (2011) uses this taxon concept.

Algal Subcommittee (2019), CHAH Algal Subcommittee: - AAL [secondary reference]

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