Real spinosaurid tooth and tooth placement

[Cavebear]

Hello people,  

This is my very first post. I recently bought this tooth since the fatty chunkyness (is this a real word?) appealed to me.it is on its way now

Seller says it is spinosaurid. If so were in the jaws can this tooth be placed since it is very fat and large as opposed to the many slender teeth that are usually found on the net.

My first tought is that it is maybe from the lower jaw (dentary ) and from the front of the jaw. The picture is from the website. 

 

Already thanks for any reply. 

With best regards, 

 

Dirk 

[Troodon]

Yep big spinosaurid tooth.  If you look at the alveoli in a dentary the anterior ones are typically much larger.

 

 

But big teeth are also present in the upper snout and maxilla.

 

 

[Cavebear]

Nice!  Thank you.