D. G. . Lazo, A. Concheyro, G. E. Ottone, V. M. Guller, and M. B. Aguirre-Urreta, “Integrated biostratigraphy of the AgrioFormation in its type locality, Early Cretaceous of the Neuquén Basin”, RAGA, vol. 65, no. 2, pp. 322-341, Oct. 2009.