What dinosaur could this be from?

[Griffinlarson]

Here are some images of what I recently found near Makoshika state park(around 5miles east of the park) - MT, Hell Creek formation. I suspect it is a theropod, but I am unsure and would love to hear some thoughts. 

 

Edited July 20, 2021 by Griffinlarson
Clearer images

[Fossildude19]

Chunk-o-saur.

 

Not sure a chunk of bone without any distinguishing features can be narrowed down much further. 

@Troodon

[Troodon]

Agree nothing diagnostic about it.

[Griffinlarson]

Thank you for the responses, I figured it might be unidentifiable. I was hoping the bone structure could at least tell if it was a theropod or not. From my limited knowledge I thought the more porous bones are theropod. 

Here is a section of something I also found. I thought it could be a rib bone, not entirely sure. Fragmented again, but more "complete" I guess than the other piece