3 of 3, Pet Wood or No?

[kerrimarie805]

This is the last of three from me, of these likely petrified wood pieces that I am just curious about. 

To recap, I believe it's pet wood but am just checking my curiosity. Found in western Nebraska, near the river or canal off the river, lots of pet wood around here but these look like they could be bone.

Apologies, I did my best to get the lime off of this one but it's not as well-preserved as the other two and I didn't want to keep chipping away at it lest I break it. Brute strength. I did my best with the pics, the piece itself is spongy looking and grainy.

[Rockwood]

2 hours ago, kerrimarie805 said:

but it's not as well-preserved as the other two

I actually think it's the best wood of the three.