Pelecyphora strobiliformis (Werderm.) Fric. & Schelle, Verzeichniss 9, 1935.

Ariocarpus strobiliformis ≡ Ariocarpus strobiliformis Werderm., Z. Sukkulentenk. 3: 126. 1927. Encephalocarpus strobiliformis (Werderm.) A.Berger, Kakteen: 332. 1929. Type: México, Tamaulipas, near Miquihuana, 22 Jan 1961 (neotype, designated by Anderson & Boke, Amer. J. Bot.: 325. 1969: POM [298105]).