Is this a Spinosaurus premax tooth?

[Deinocheirusmaster!]

I recently bought a Spinosaurus tooth from a fossil shop on the Rocky Moutains. I noticed this little ridge on both sides of the tooth. I looked at some pictures on the internet and im inclined to beileve that its from the premaxilla. Supposedly the teeth from the premaxilla are pointed with sharp edges on both sides. Could this tooth be one of those? Note that there is feeding wear on the tooth.

[Troodon]

I dont believe we can distinguish between the different tooth positions in Spinosaurids.  Not sure if a Premax has ever been found with a full set of complete teeth in it to make that call.  So we know very little.   Your tooth is pointed because of the wear facet on the side which occurs by contacting the opposing tooth in the jaw.

 

This is how a Premax and Premaxillary jaw typically look like when found.

[LordTrilobite]

Yup, no way to know. But the wear facet is pretty cool.

[Deinocheirusmaster!]

9 minutes ago, LordTrilobite said:

Yup, no way to know. But the wear facet is pretty cool.

Thanks!

[Sinraptor]

I have one similar to yours and I have the same question too

Edited May 29 by Sinraptor

[Fossildude19]

1 hour ago, Sinraptor said:

I have one similar to yours and I have the same question too

 

 

As stated by Forum experts, there is no way to tell for sure.