Maybe a tailbone from something?

[HockeyMan]

 

[vhs07]

Buffalo vertebrate

 

[kuger]

Buffalo vertebrate

Yep

 

[skeeterd]

 

[BosnMate]

Are there any cut marks on the bone showing that the animal was butchered and meat was cut off the bone. They won't necessarily be very deep or long, looking something like the photo.

 

[Paleopilot]

View attachment 710390

A Bison Thoracic Vertebrae, and just to the right of it you have a Astragalus, "Tarsal" (Bison rear leg). In the center between the two, you have a 2nd Phalanx bone, just above that you have what appears to be a Hoof-Core. Hope this helps.

 

[DCMatt]

Wow! Very impressive IDs! Thank you, doctors.

DCMatt