Kem Kem Theropod vertebra centrum

[Opabinia Blues]

This is a vertebra I won as part of an online giveaway. I was told that it’s a Spinosaurus vertebra, but I doubt that vertebrae centra are identifiable down to genus level like that. Still, thought I’d post it here in case anyone can narrow it down for me so I can get a more accurate ID.

 

(I will add that although it is difficult to see in the images, both the posterior and anterior ends of the centrum are concave). 

 

 

Thanks!

[Opabinia Blues]

Writing a comment to add that after doing some more research I think there’s a very good chance this is actually a crocodile vertebra, but I’m still not 100% sure so any insight would be appreciated.

[Troodon]

Centrums can be difficult but I would lean toward a dorsal Croc.