In a photo made May 15, 2012 Diretor Pete Larson of the Black Hills Institute of Geologic Research, back, and artist Tomas Schneider, right, attach a Tyrannosaurus Rex fossil head into place in the new Hall of Paleontology at the Houston Museum of Natural Science Tuesday. The $85 million wing of the museum will have the only Triceratops skin found to date and a unique T-rex fossil with complete hands.(AP Photo/Michael Stravato)