Martínez-Domínguez, L., Nicolalde-Morejón, F., Vergara-Silva, F., & Stevenson, D. W. (2016).

Integrative taxonomy of Mexican cycads: biogeography, morphology and DNA barcoding corroborate a new sympatric species in Ceratozamia (Zamiaceae)

. Phytotaxa, 268(1), 25–45. https://doi.org/10.11646/phytotaxa.268.1.2