Hill, K.D. in McCarthy, P.M. (ed.) (1998), Appendix: Zamiaceae. Flora of Australia 48: 717 [tax. nov.]

• Type: "State Forest 639, Wrattens, Qld, 25 Oct. 1992, P.I.Forster 12137B & P.Machin; holo: BRI."

• Etymology: "The specific epithet is derived from the Latin words longi (longer) and spina (a spine), alluding to the long apical spines on the distal microsporophylls."

Hill, K.D. in McCarthy, P.M. (ed.) (1998), Zamiaceae. Flora of Australia 48: 646, Map 582 [secondary reference]

Jones, D.L., Forster, P.I. & Sharma, I.K. (2001), Revision of the Macrozamia miquelii (F.Muell.) A.DC. (Zamiaceae section Macrozamia) group. Austrobaileya 6(1): 79-80 APC [secondary reference]

• APC Dist.: Qld

Jessup, L.W. (2005), Flora of South-eastern Queensland Volume 3 Changes to names or status of taxa: - [secondary reference]

pro parte misapplication: Macrozamia miquelii (F.Muell.) A.DC. legitimate by Candolle, A.L.P.P. de in Candolle, A.L.P.P. de (ed.) (1868), Cycadaceae. Prodromus Systematis Naturalis Regni Vegetabilis 16(2): 535-536

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