Kellner Alexander Wilhelm Armin, Simões Tiago Rodrigues, Riff Douglas, Grillo Orlando, Romano Pedro, Paula Helder de, Ramos Renato, Carvalho Marcelo, Sayão Juliana, Oliveira Gustavo, and Rodrigues Taissa. “The Oldest Plesiosaur (Reptilia, Sauropterygia) from Antarctica”. Polar Research00 (June 7, 2011). Accessed March 28, 2024. https://polarresearch.net/index.php/polar/article/view/3039.