O'Gorman, J. P. (2012). The oldest elasmosaurs (Sauropterygia, Plesiosauria) from Antarctica, Santa Marta Formation (upper Coniacian? Santonian-upper Campanian) and Snow Hill Island Formation (upper Campanian-lower Maastrichtian), James Ross Island. Web
Citación estilo ChicagoO'Gorman, José Patricio. The Oldest Elasmosaurs (Sauropterygia, Plesiosauria) From Antarctica, Santa Marta Formation (upper Coniacian? Santonian-upper Campanian) and Snow Hill Island Formation (upper Campanian-lower Maastrichtian), James Ross Island. 2012.
Cita MLAO'Gorman, José Patricio. The Oldest Elasmosaurs (Sauropterygia, Plesiosauria) From Antarctica, Santa Marta Formation (upper Coniacian? Santonian-upper Campanian) and Snow Hill Island Formation (upper Campanian-lower Maastrichtian), James Ross Island. 2012.