“The oldest lower Upper Cretaceous plesiosaurs (Reptilia, Sauropterygia) from southern Patagonia, Argentina”, AMGH, vol. 47, no. 4, pp. 447–459, Feb. 2011, Accessed: Sep. 26, 2025. [Online]. Available: https://ameghiniana.org.ar/index.php/ameghiniana/article/view/260