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| Otero, Rodrigo A, Suárez, Mario E and Le Roux, Jacobus P First record of Elasmosaurid Plesiosaurs (Sauropterygia: Plesiosauria) in upper levels of the Dorotea Formation, Late Cretaceous (Maastrichtian), Puerto Natales, Chilean Patagonia. AndGeo, July 2009, vol.36, no.2, p.342-350. ISSN 0718-7106
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