Originally published in EXEL Magazine.

Finding a dinosaur in Patagonia is not difficult, if you know what to look for.

It was therefore not a surprise to Drexel professor and paleontologist Ken Lacovara when a member of his field expedition team discovered a dinosaur femur in Argentina in early 2005.

The size of the giant creature it belonged to and the remarkable completeness of its skeleton, however, came as pleasant shock.

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