Johnson, L.A.S. in George, A.S. (ed.) (1989), Appendix: Allocasuarina. Flora of Australia 3: 199 [tax. nov.]

• Type: "Mt Coolum, Qld, 23 Apr. 1981, L.A.S.Johnson 8562, P.Sharpe & K.Wilson; holo: NSW, with cones; iso: BRI."

• Etymology: "Named from the Greek thalassa (the sea) and skopos (a watcher), referring to its situation on the mountain slope facing the sea."

Wilson, K.L. & Johnson, L.A.S. in George, A.S. (ed.) (1989), Casuarinaceae. Flora of Australia 3: 150-151, fig. 54J, map 145 [secondary reference]

• APC Dist.: Qld

Threatened Species and Communities Section, Biodiversity Group, Environment Australia (8 July 1998), Endangered Species Protection Act 1992. Schedules 1, 2 & 3: 6 [secondary reference]

Rose, P.F., Wilson, K.L., Telford, I.R.H., Lamont, R.W. & Bruhl, J.J. (31 March 2015), Multiple lines of evidence clarify limits of Allocasuarina thalassoscopica, A. defungens and A. littoralis (Allocasuarina sect. Cylindropitys, Casuarinaceae). Australian Systematic Botany 27(4): 265-268 [secondary reference]

taxonomic synonym: Allocasuarina emuina L.A.S.Johnson legitimate

Council of Heads of Australasian Herbaria (2017), Australian Plant Census: - [secondary reference]

taxonomic synonym: Casuarina sp. Mt Coolum (L.A.S.Johnson 8562) [n/a] taxonomic synonym: Casuarina sp. Mt Emu (P.R.Sharpe 2650) [n/a] taxonomic synonym: Allocasuarina emuina L.A.S.Johnson legitimate

• APC Comment: Allocasuarina emuina is recognised as a distinct species in Qld.
• APC Dist.: Qld, NSW

Council of Heads of Australasian Herbaria (29 September 2022), Australian Plant Census: - APC [secondary reference]

taxonomic synonym: Casuarina sp. Mt Emu (P.R.Sharpe 2650) [n/a] taxonomic synonym: Casuarina sp. Mt Coolum (L.A.S.Johnson 8562) [n/a] taxonomic synonym: Allocasuarina sp. 5 (Mt. Emu) [n/a] taxonomic synonym: Allocasuarina emuina L.A.S.Johnson legitimate taxonomic synonym: Allocasuarina emuina L.A.S.Johnson x Allocasuarina littoralis (Salisb.) L.A.S.Johnson [n/a]

• APC Comment: Allocasuarina emuina is recognised as a distinct species in Qld.
• APC Dist.: Qld, NSW

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