Help with fossil ID

[Lorney]

Just wondering if anyone recognizes this. I am pretty sure it is a fossil but not sure if it is corral or bone or something different. I don’t have any pics with a tape measure on my phone but can get some tomorrow if it would help. It is roughly the size of my palm. 
Found in Southern Alberta in an area that has other Bearpaw formation fossils. However I have found other marine fossils here that are clearly not from the Bearpaw formation and are thought to have been brought from further west possibly by glaciers. I also found a rugose corral in the same area. 
It is concave in the middle on one side that you may be able to make out in the one picture. Any help would be appreciated and I can get more pics if necessary. Thanks in advance. 

 

[Rockwood]

My feeling is that this is a worn centrum from a large marine animal.

You will have to wait to see if it resembles an actual identification though. 

[Shellseeker]

Whale,  beautifully worn... Nice find.

[Lorney]

Thanks for your help. I was not thinking that but now have starting point. 

[PaleoNoel]

On 7/23/2021 at 7:42 AM, Shellseeker said:

Whale,  beautifully worn... Nice find.

 

No whales in the Late Cretaceous Bearpaw.

I would imagine it's a heavily worn hunk of plesiosaur vertebra given the age, but could really be any large marine reptile.