What is it

[Aiden1006]

 Bought it at an antique shop in New York State wanted to know what it is, I couldn't identify it my self.

[Raggedy Man]

Maybe a bone fragment? Really hard to tell with just one picture to look at. Submit a few more please with better lighting and of the ends. 

[Aiden1006]

[Aiden1006]

[kolleamm]

It looks like a rock to me, I'm not seeing any distinct bone features. It also looks rounded by water.

[Fossildude19]

Cropped and brightened:

 

 

 

 

 

Sorry, not seeing a fossil here. 

 

Was it advertised or listed as a fossil?

Hope you didn't pay too much for it.   

[caldigger]

Just curious, if you or the store clerk didn't know what it was, what prompted him to have it up for sell and you to purchase it? 

[Rockwood]

Looks a bit like concretions found in the brooks of NewJersey. 

[Aiden1006]

It was listed as a and I quote "fossilized dinosaur bone of an unknown species". I only paid $9.00.

[jpc]

yup...no bone there.  Sorry to say. 

[dalmayshun]

to me, it looks like dugong bone...piece of broken rib

[sixgill pete]

1 hour ago, dalmayshun said:

to me, it looks like dugong bone...piece of broken rib

Sorry not a dugong bone in my opinion. A cool looking rock.

[ynot]

Because of the hole in the end I would call it a burrow cast.