Reference

Bardet, N., M.., Fernández, J. C. García-Ramos, Z. P. Suberbiola, L. Piñuela, J. I. Ruiz-Omeñaca, and P. Vincent. 2008. A juvenile plesiosaur from the Pliensbachian (Lower Jurassic) of Asturias, Spain. Journal of Vertebrate Paleontology, 28, 258-263.