Turbinicarpus ×calozonus Halda & Panar. in Acta Mus. Richnov., Sect. Nat., 10: 166. 2003
Turbinicarpus ×calozonus in Acta Mus. Richnov., Sect. Nat., 10: 166. 2003
is basionym for Turbinicarpus ×amoenulus nothosubsp. calozonus in Cact. Phantast. 2019(4)-1: 9. 2019
Holotype: Garden hybrid, 25 Jun 2003, P. Panarotto 11946 (PR)
Turbinicarpus ×calozonus in Acta Mus. Richnov., Sect. Nat., 10: 166. 2003