Possible Fossil?

[kimberly541]

Found in Central Oregon, Crook County. Wondering if it is maybe a fossilized nut or seed pod? Found it near these limb casts.

 

[Jason in Enid]

I think you may have a winner there. I can't tell exactly what it is, but certainly has the look of something fossilized and not just an odd shaped rock.

 

[Perico]

Looks like some sort of sandstone. Look at all the grains. Definitely weird shape. For a second there I thought maybe pottery.

 

[GatorBoy]

I'm thinking concretion

 

[Harry Pristis]

Consider the possibility that it is a volcanic bomb.
Volcanic bomb - Wikipedia, the free encyclopedia