Dinosaur toe bone ID needed! JRF find

[WyomingRocks!]

Pls help with an ID of this toe bone found in Hill Cnty, MT. I have taken several views of it and it is 2.25" long. It had been exposed for a long time and had a layer of lichens on it. Is it Tyrannosaur related, raptor, or ??

 

Thanks!

[Troodon]

I think its ornithomimid and given the size possibly cf Struthiomimus :

Right phalanx Digit II-2

[WyomingRocks!]

Thanks Troodon!