Janes, J.K. & Duretto, M.F. (31 August 2010), A new classification for subtribe Pterostylidinae (Orchidaceae), reaffirming Pterostylis in the broad sense. Australian Systematic Botany 23(4): 261-262 [comb. nov.]

basionym: Oligochaetochilus extraneus D.L.Jones legitimate

Backhouse, G.N., Bates, R.J., Brown, A.P. & Copeland, L.M. (1 March 2016), Checklist of the orchids of Australia including its island territories: 38, 89 [secondary reference]

Council of Heads of Australasian Herbaria (28 February 2018), Australian Plant Census: - APC [secondary reference]

nomenclatural synonym: Oligochaetochilus extraneus D.L.Jones legitimate

• APC Dist.: Qld

Jones, D.L. (January 2021), Native Orchids of Australia Edn. 3: 558 [nomenclatural synonym]

nomenclatural synonym of: Oligochaetochilus extraneus D.L.Jones legitimate

---