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His expeditions, including many to the Gobi Desert in Mongolia, yielded rare discoveries and led to exhibitions at the American Museum of Natural History.
By Richard Sandomir
Mark Norell, a globe-trotting paleontologist whose research focused on the evolutionary links between dinosaurs and birds, and whose expeditions yielded rare discoveries like the nearly intact embryo of a birdlike oviraptor, died on Tuesday in Manhattan. He was 68.
His death, in a hospital, was caused by heart failure, said his brother, Todd.
