Could this be predation marks?

[Nautiloid 361]

Greetings forum members!
 

 

I was looking through the last rocks from my latest fossil hunt and I found this interesting piece.

Its a partial Pterygotid body segment! I had broken it and I thought I had thrown it back but apparently I kept like 80% of it. I glued it back together as best I could last night and was looking more closely when I found something interesting. 
I’m not completely sure but I have a hunch that the one end of this fossil might have predation marks from a larger Pterygotid. Could this be true or did it just break weird when it was molted? I was wondering if anybody on the forum could help me out with this. 
 

Thanks for looking!

Owen