Argentinian jaw or rock ?

[Brevicollis]

Hello, I saw this "Argentinian jaw" for sale today and wondered If its really a jaw or an interesting rock formation. Its exact finding location isnt stated, but its apparently from Argentina. Has anyone an Idea ?

[Rockwood]

I'm no expert, but it looks like a piece of Theropod jaw to me. 

[Brevicollis]

1 minute ago, Rockwood said:

I'm no expert, but it looks like a piece of Theropod jaw to me. 

Sounds too good to be true, but lets hear what others have to say. But if its really one, than im speechless.

[Mahnmut]

I agree this looks like teeth in bone. couldn´t say whose.

Best regards,

J

[Brevicollis]

Maybe its only the roots, as im not seeing crowns here. So I think it'll be hard to tell whose teeth are these.

[FB003]

1) Illegal to export from Argentina.  First red flag. Stuff from there that is legitimate is not the kind of stuff you see posted on the open market. I believe these pretty much just hover from private collection to  private collection.

2) I don't quite buy theropod jaw. Seems like a lot of inconsistency in size if the pointy ends are the tops of the "teeth" or vice versa.  I'm not sure I buy teeth either at least not dinosaur.