Petrulevičius, J. F., R. G. Martins-Neto, D. Azar, E. Makhoul, and A. Nel. “Full Description of Cordulagomphus Primaerensis From Santana Formation (Lower Cretaceous of Brazil) (Odonata: Aeshnoptera: Proterogomphidae)”. Zootaxa, vol. 3503, no. 1, Oct. 2012, pp. 55–60, doi:10.11646/zootaxa.3503.1.4.