Unidentified Bones from White River Formation

[FossilsandScience]

Hey everyone - 

 

I dug up two bones and put them together but can’t figure out what the bones are and what species they are from. I found it in the White River Formation and the first bone (first picture) is about 4 inches long, while the second bone (second picture) is about 6.5 inches long. I found the bones right next to each other. Does anyone have any idea what they are or if they possibly connect or are part of the same bone? 

[FossilsandScience]

Second photo (second bone)