Lizard vertebrae?

[Ninjafossils]

I found this on my trip to South Dakota. It looks to be a semi complete vertebrae. Too small to be a dinosaur, not a snake or fish. Could it be from an amphibian, lizard, maybe even a mammal.

 

[Age_old]

To me, it looks like a very small snake vertebrae. I could be wrong, of course; it's difficult to ID a fragment.

 

[rock]

Tiny thing. How did you manage to see it?

 

[Ninjafossils]

Young eyes my friend. Young eyes