Pterosaur or infant Spinosaur tooth?

[Wowbnjijdat]

Hi guys,

 

I am really doubting about these two teeth. I bought them as pterosaur, but I really think the left one is an infant Spinosaur (it has corrugations on te tooth), the right one is anyway Pterosaur I think.

 

What is you guess?

 

 

[Troodon]

I think your assessment is correct.  How large are they and can you post an image of the other side of these teeth

[Wowbnjijdat]

They are both around 2 cm. 

[Troodon]

Thank you, boy they are small, very nice.  The vertical ridges on the left tooth is typical of a Spinosaurid so that's nice.   Pterosaur on the other.  

[Wowbnjijdat]

Thank you!