Bones?

[Bone guy]

These two pieces are said to be from the Morrison formation. Anyway way to ID them?

[Aurelius]

I'm afraid these don't look bone-like to me in the slightest. Am I missing something?

[izak_]

Sorry to say but these are rocks, not bones. 

[Bone guy]

Yeah that's what I thought haha

[caldigger]

Yep, good 'ol geological chunks. Likely a siltstone or mudstone.

Where are you getting your information on them as bone material?

Although, the one on the right in the first couple of pics does resemble a T-bone steak in a way.

[Troodon]

You can put it this way, they are rocks from the Jurassic of the Morrison Formation.