Unidentified Dinosaur Vertebrae - Hell Creek Formation

This is an unidentified dinosaur vertebrae from the Cretaceous Age. It has some repaired cracks running through it having been reassembled from 5 pieces that had broken apart due to weathering. It was found in the Hell Creek Formation in Montana which is know for producing fossils of T-Rex and Edmontosaurus. It could be from any number of dinosaurs, the mystery will remain...