Dinosaur tooth, bone?

[dano91]

I found this last week. I thought it might be a tooth or piece of bone. It was used in an old stone wall at one time. Any ideas?
Dano.

 

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[Bunker]

Maybe a Mastadon (sp?) (ancient elephant) tooth. Someone brought one to our club meeting in Aug. looks similar. Sorry the pix isn't really made for this kind of post. Under the tooth is printed material. Just my guess.
Bunker

 

[kuger]

Looks like petrified Palm wood to me.We find it all the time in Nevada

 

[Gunny71]

I think its petrified wood as well, nice chunk.

 

[Monty]

If it is a tooth it is as identified a mastadon tooth. The local museum has several found along the Arkansas river. Monty