How tall was a gigantasaurus?

First, get the name right. (It's not your fault; it's wrong in a lot of books) It's not "gigant -a - saurus" (presumably "gigantic lizard'), but "Giga - nodo - saurus" ("Great Southern Lizard") [There was already a smaller one named Nodosaurus]. This critter had a little height on the Tyrannosaurus, so figure about twenty-two feet at its most erect. Of course, the posture of the great meat-eaters is somewhat conjectural, so most of the time, it might have been no higher than its hips (about ten feet).