![Buenos Aires, Argentina. 19th Dec, 2018. Replica of a 65-million-year-old skeleton of a plesiosaur marine reptile is displayed in the museum hall at the Bernardino Rivadavia Natural Science Museum in Buenos Aires, Buenos Aires, Argentina. 19th Dec, 2018. Replica of a 65-million-year-old skeleton of a plesiosaur marine reptile is displayed in the museum hall at the Bernardino Rivadavia Natural Science Museum in Buenos Aires,](https://l450v.alamy.com/450v/r96n1x/buenos-aires-argentina-19th-dec-2018-visitors-admire-replica-of-a-65-million-year-old-skeleton-of-a-plesiosaur-marine-reptile-at-the-bernardino-rivadavia-natural-science-museum-in-buenos-aires-argentina-on-dec-19-2018-the-fossil-is-found-in-cretaceous-period-rocks-submerged-in-lake-argentino-at-the-foot-of-the-andes-mountainsthe-fossil-is-nine-meters-long-with-each-fin-measuring-13-meters-credit-martin-zabalaxinhuaalamy-live-news-r96n1x.jpg)
Buenos Aires, Argentina. 19th Dec, 2018. Replica of a 65-million-year-old skeleton of a plesiosaur marine reptile is displayed in the museum hall at the Bernardino Rivadavia Natural Science Museum in Buenos Aires,
![At Auction: LUIS GUEILBURT (Buenos Aires, 1950). "Fossil". Sculpture cast in bronze with the lost wax technique. Hand finished. Artist's proof. Limited edition of 60 copies. Signed. Weight: 1,500 kg. At Auction: LUIS GUEILBURT (Buenos Aires, 1950). "Fossil". Sculpture cast in bronze with the lost wax technique. Hand finished. Artist's proof. Limited edition of 60 copies. Signed. Weight: 1,500 kg.](https://image.invaluable.com/housePhotos/Setdart/83/751283/H22806-L337349333_original.jpg)
At Auction: LUIS GUEILBURT (Buenos Aires, 1950). "Fossil". Sculpture cast in bronze with the lost wax technique. Hand finished. Artist's proof. Limited edition of 60 copies. Signed. Weight: 1,500 kg.
![Buenos Aires, Argentina. 19th Dec, 2018. Replica of a 65-million-year-old skeleton of a plesiosaur marine reptile is displayed in the museum hall at the Bernardino Rivadavia Natural Science Museum in Buenos Aires, Buenos Aires, Argentina. 19th Dec, 2018. Replica of a 65-million-year-old skeleton of a plesiosaur marine reptile is displayed in the museum hall at the Bernardino Rivadavia Natural Science Museum in Buenos Aires,](https://c8.alamy.com/comp/R96N23/buenos-aires-argentina-19th-dec-2018-replica-of-a-65-million-year-old-skeleton-of-a-plesiosaur-marine-reptile-is-displayed-in-the-museum-hall-at-the-bernardino-rivadavia-natural-science-museum-in-buenos-aires-argentina-on-dec-19-2018-the-fossil-is-found-in-cretaceous-period-rocks-submerged-in-lake-argentino-at-the-foot-of-the-andes-mountainsthe-fossil-is-nine-meters-long-with-each-fin-measuring-13-meters-credit-martin-zabalaxinhuaalamy-live-news-R96N23.jpg)
Buenos Aires, Argentina. 19th Dec, 2018. Replica of a 65-million-year-old skeleton of a plesiosaur marine reptile is displayed in the museum hall at the Bernardino Rivadavia Natural Science Museum in Buenos Aires,
![Buenos Aires, Argentina. 19th Dec, 2018. Replica of a 65-million-year-old skeleton of a plesiosaur marine reptile is displayed in the museum hall at the Bernardino Rivadavia Natural Science Museum in Buenos Aires, Buenos Aires, Argentina. 19th Dec, 2018. Replica of a 65-million-year-old skeleton of a plesiosaur marine reptile is displayed in the museum hall at the Bernardino Rivadavia Natural Science Museum in Buenos Aires,](https://c8.alamy.com/comp/R96N20/buenos-aires-argentina-19th-dec-2018-replica-of-a-65-million-year-old-skeleton-of-a-plesiosaur-marine-reptile-is-displayed-in-the-museum-hall-at-the-bernardino-rivadavia-natural-science-museum-in-buenos-aires-argentina-on-dec-19-2018-the-fossil-is-found-in-cretaceous-period-rocks-submerged-in-lake-argentino-at-the-foot-of-the-andes-mountains-the-fossil-is-nine-meters-long-with-each-fin-measuring-13-meters-credit-martin-zabalaxinhuaalamy-live-news-R96N20.jpg)