Is this an unidentified Spinosaurus tooth?

[Ginger0412]

Hello.
Are these teeth from a new species of Spinosaurus?
Origin: Laos Gress Superieur Formation
Below is information from the vendor.
Ichthyobenator has been found, but "this tooth has the typical striated enamel, but is longer and thinner than a typical Ichthyobenator tooth."
If anyone knows, please let me know. Thanks in advance.

[JoeS]

Hi, below is the post from the seller trying to narrow down the ID of the tooth. Hope it helps.
 

 

[Ginger0412]

ありがとうございました。

Edited January 31, 2023 by Ginger0412

[Pliosaur]

@Ginger0412 Definitely spinosaurid but very unlikely to get an identification as so little has been described from the Gres Superieurs Formation, although it can very likely be Ichthyovenator 

[Ginger0412]

Thank you

Edited January 31, 2023 by Ginger0412

[Ginger0412]

2 hours ago, Pliosaur said:

@Ginger0412 Definitely spinosaurid but very unlikely to get an identification as so little has been described from the Gres Superieurs Formation, although it can very likely be Ichthyovenator 

Thank you for telling me! Undiscovered New Species of Tooth？