Mary Kirkaldy wrote- > Congratulations to Josh Smith on this exciting discovery. AP and Reuters both have stories on the find, with varying sets of details. AP has the humerus at 5-1/2 feet and Reuters says 6 feet 7 inches. 1.69 meters actually. So 5.54 feet long. AP is more accurate. Argentinosaurus' is estimated to be 1.81 meters, or 7.5% longer. Mickey Mortimer