Early Eocene Ar Age for the Pampa de Jones plant, Frog, and Insect Biota (Huitrera Formation, Neuquén Province, Patagonia, Argentina)DOI: info:10.5710/AMGH.v47i2.7v. 47No. 2207–216
Wilf, Peter, Singer, Brad S., Zamaloa, María del Carmen, Johnson, Kirk R., and Cúneo, N. Rubén. 2010. "Early Eocene 40 Ar/ 39 Ar Age for the Pampa de Jones plant, Frog, and Insect Biota (Huitrera Formation, Neuquén Province, Patagonia, Argentina)." Ameghiniana, 47, (2) 207–216. https://doi.org/10.5710/AMGH.v47i2.7.