Vertebra of some sort

[screel0118]

Found this in Alabama mountains near Huntsville.   Was in a washed out area of rock. 

A professor at Ohio State did confirm its bone and possibly a vertebra.   

Any one have any insight as to what would have vertebrae this large?

 

[Fossildude19]

Chert nodule.

Note the conchoidal fracture in the center and on the edges.

I'm not a bone guy, so don't take my word for it.

But this doesn't look like the bone material we see on here on a regular basis.

Wait for other opinions.

 

@Harry Pristis

[Harry Pristis]

Not bone, looks like a fine-grained rock.

[hemipristis]

agatized wood?

[MrR]

It doesn't look like bone to me. What I find odd is the way it seems to be cut, as if it was sliced off of a cylinder. I mean, both sides rather flat like that? I can't help wondering if it was somebody's idea of most lucrative use of a chert nodule, or other such thing. But I am a low man on the expertise totem-pole around here, so take it with a crystal of halite. Cheers.