The 66-million-year-old creature, dubbed the "Nation's T. rex," is still the centerpiece of a revamped fossil hall, coming to the National Museum of Natural History in June.

HELL CREEK FORMATION , MT - MAY 23: Ranchers Kathy and Tom Wankel have a toast with two of their children, Rock and Whitney, with Pat Leiggi, Director of Paleontology at the Museum of the Rockies, who lead the Wankel T. rex dinosaur excavation as they return to the site where they discovered a T-Rex skeleton on a small island in the Fort Peck Reservoir. The Wankel T-Rex is the centerpiece of the newly renovated Fossil Hall at the National Museum of Natural History. (Photo by Jonathan Newton / The Washington Post via Getty Images)