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Pablo Puerta lies alongside a sauropod dinosaur femur, believed to be the largest in the world, in Trelew, Argentina. Paleontologists from the Museo Paletontolo Egidio Feruglio announced the discovery Friday of the fossil remains of the sauropod dinosaur near Trelew.

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Huge femur in Argentina could be biggest dino yet

Scientists in Argentina have uncovered what could be the largest dinosaur yet discovered — a long-necked titanosaur as tall as a six-story building, whose thigh bone alone dwarfs a fully grown man.

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