| Mexico | | | SPECIMEN BASED RECORD | | Published protolog data | | |
| Mexico | | | Stevenson, D. W., R. Osborne & J. Hendricks | 1990 | A world list of cycads | Mem. New York Bot. Gard. | 57: 200–206 |
| Mexico | Oaxaca | | García-Mendoza, A. J. & J. A. Meave del Castillo | 2011 | (none) | Divers. Floríst. Oaxaca | 1–351 |
| Mexico | Oaxaca | | Villaseñor Ríos, J. L. | 2016 | Checklist of the native vascular plants of Mexico/Catálogo de las plantas vasculares nativas de México | Revista Mex. Biodivers. | 87(3): 559–902 |
| Mexico | Oaxaca | | Martínez-Domínguez, L., F. Nicolalde-Morejón, F. Vergara-Silva & D. W. Stevenson | 2022 | Monograph of Ceratozamia (Zamiaceae, Cycadales): An endangered genus | PhytoKeys | 208: 1-102 |
| Mexico | Oaxaca | | Ulloa Ulloa, C., H. M. Hernández, F. R. Barrie, G. Davidse & S. Knapp | 2025 | Cycadaceae a Cactaceae | Fl. Mesoamer. | 2(1): in press |
| Mexico | Veracruz | | Ulloa Ulloa, C., H. M. Hernández, F. R. Barrie, G. Davidse & S. Knapp | 2025 | Cycadaceae a Cactaceae | Fl. Mesoamer. | 2(1): in press |
| Mexico | Veracruz | | Martínez-Domínguez, L., F. Nicolalde-Morejón, F. Vergara-Silva & D. W. Stevenson | 2022 | Ceratozamia oliversacksii (Zamiaceae), a new species of gymnosperm from western Oaxaca, Mexico | Kew Bull. | 77(1): 211–219 |
| Mexico | Veracruz | | Villaseñor Ríos, J. L. | 2016 | Checklist of the native vascular plants of Mexico/Catálogo de las plantas vasculares nativas de México | Revista Mex. Biodivers. | 87(3): 559–902 |
| Mexico | Veracruz | | Stevenson, D. W., S. Sabato & M. Vázquez Torres | 1986 | A new species of Ceratozamia (Zamiaceae) from Veracruz, Mexico with comments on species relationships, habitats, and vegetative morphology in Ceratozamia | Brittonia | 38(1): 17–26 |
| Mexico | Veracruz | | Stevenson, D. W., R. Osborne & J. Hendricks | 1990 | A world list of cycads | Mem. New York Bot. Gard. | 57: 200–206 |
| Mexico | Veracruz | Hidalgotitlán | Martínez-Domínguez, L., F. Nicolalde-Morejón, F. Vergara-Silva & D. W. Stevenson | 2022 | Monograph of Ceratozamia (Zamiaceae, Cycadales): An endangered genus | PhytoKeys | 208: 1-102 |
| Mexico | Veracruz | Jesús Carranza | Martínez-Domínguez, L., F. Nicolalde-Morejón, F. Vergara-Silva & D. W. Stevenson | 2022 | Monograph of Ceratozamia (Zamiaceae, Cycadales): An endangered genus | PhytoKeys | 208: 1-102 |
| Mexico | Veracruz | Minatitlán | Martínez-Domínguez, L., F. Nicolalde-Morejón, F. Vergara-Silva & D. W. Stevenson | 2022 | Monograph of Ceratozamia (Zamiaceae, Cycadales): An endangered genus | PhytoKeys | 208: 1-102 |