Zhang, B.C. & Minter, D.W (1989), Gymnohydnotrya: a new hypogeous ascomycete genus from Australia. Mycological Research 92 (2): 196 [comb. nov.]

basionym: Sphaerozone echinulatum G.W.Beaton legitimate

AusFungi (2019), AusFungi 21 Jan. 2019: - [secondary reference]

nomenclatural synonym: Sphaerozone echinulatum G.W.Beaton legitimate

Kraisitudomsook, N., Healy, R.A., Pfister, D.H., Truong, C., Nouhra, E., Kuhar, F., Mujic, A.B., Trappe, J.M. & Smith, M.E. (31 October 2019), Resurrecting the genus Geomorium: Systematic study of fungi in the genera Underwoodia and Gymnohydnotrya (Pezizales) with the description of three new South American species. Persoonia 44: 106 [nomenclatural synonym]

nomenclatural synonym of: Geomorium echinulatum (G.W.Beaton) Kraisit., Pfister & M.E.Sm. legitimate

AusFungi (2023), AusFungi: - [nomenclatural synonym]

nomenclatural synonym of: Geomorium echinulatum (G.W.Beaton) Kraisit., Pfister & M.E.Sm. legitimate

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