| Belize | | | Stevenson, D. W., R. Osborne & J. Hendricks | 1990 | A world list of cycads | Mem. New York Bot. Gard. | 57: 200–206 |
| Belize | | | Balick, M. J., M. H. Nee & D.E. Atha | 2000 | Checklist of the vascular plants of Belize | Mem. New York Bot. Gard. | 85: i–ix, 1–246 |
| Guatemala | | | Stevenson, D. W., R. Osborne & J. Hendricks | 1990 | A world list of cycads | Mem. New York Bot. Gard. | 57: 200–206 |
| Guatemala | | | Ulloa Ulloa, C., H. M. Hernández, F. R. Barrie, G. Davidse & S. Knapp | 2025 | Cycadaceae a Cactaceae | Fl. Mesoamer. | 2(1): ined. |
| Guatemala | | | 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 |
| Guatemala | Alta Verapaz | | 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 |
| Guatemala | Huehuetenango | | 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 | | | Stevenson, D. W., R. Osborne & J. Hendricks | 1990 | A world list of cycads | Mem. New York Bot. Gard. | 57: 200–206 |
| Mexico | | | SPECIMEN BASED RECORD | | Published protolog data | | |
| Mexico | | | Martínez-Domínguez, L., F. Nicolalde-Morejón, F. G. Lorea-Hernández, F. Vergara-Silva & D. W. Stevenson | 2020 | A novelty in Ceratozamia (Zamiaceae, Cycadales) from the Sierra Madre del Sur, Mexico: biogeographic and morphological patterns, DNA barcoding and phenology | PhytoKeys | 156: 1–25 |
| Mexico | Chiapas | | Pérez-Farrera, M.Á., J.S. Gutiérrez-Ortega, J. L. Haynes, J. Chemnick, S. H. Salas Morales, M. Calonje & A. P. Vovides | 2021 | Ceratozamia aurantiaca (Zamiaceae): A new cycad species from the northern rainforests of Oaxaca, Mexico | Taxonomy | 1(3): 243–255 |
| Mexico | Chiapas | | Ulloa Ulloa, C., H. M. Hernández, F. R. Barrie, G. Davidse & S. Knapp | 2025 | Cycadaceae a Cactaceae | Fl. Mesoamer. | 2(1): ined. |
| Mexico | Chiapas | | 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 | Chiapas | | 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 | Chiapas | | SPECIMEN BASED RECORD | | Published protolog data | | |
| Mexico | Chiapas | Berriozábal | 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 | Chiapas | Berriozábal | Martínez-Domínguez, L., F. Nicolalde-Morejón, F. Vergara-Silva & D. W. Stevenson | 2016 | Integrative taxonomy of Mexican cycads: Biogeography, morphology and DNA barcoding corroborate a new sympatric species in Ceratozamia (Zamiaceae) | Phytotaxa | 268(1): 25–45 |
| Mexico | Chiapas | Copainalá | 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 | Chiapas | Ocosingo | 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 | Chiapas | Ocozocoautla de Espinosa | 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 | Chiapas | Osumacinta | 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 | Chiapas | San Fernando | 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 | Chiapas | San Fernando | Martínez-Domínguez, L., F. Nicolalde-Morejón, F. Vergara-Silva & D. W. Stevenson | 2016 | Integrative taxonomy of Mexican cycads: Biogeography, morphology and DNA barcoding corroborate a new sympatric species in Ceratozamia (Zamiaceae) | Phytotaxa | 268(1): 25–45 |
| Mexico | Chiapas | Tuxtla Gutiérrez | Martínez-Domínguez, L., F. Nicolalde-Morejón, F. Vergara-Silva & D. W. Stevenson | 2016 | Integrative taxonomy of Mexican cycads: Biogeography, morphology and DNA barcoding corroborate a new sympatric species in Ceratozamia (Zamiaceae) | Phytotaxa | 268(1): 25–45 |
| Mexico | Chiapas | Tuxtla Gutiérrez | 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 | Guerrero | | 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 | Oaxaca | | García-Mendoza, A. J. & J. A. Meave del Castillo | 2011 | (none) | Divers. Floríst. Oaxaca | 1–351 |
| Mexico | Oaxaca | | 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., 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 |