Wealden Clay - hollow bone - theropod?

[FF7_Yuffie]

Listed as a partial tibia and being hollow, possible theropod?

 

Very small--just under 1inch.

 

Is there any other possibilities for such a small, hollow bone? Could it be a type of small reptile for instance? Also, is it Tibia, or another type of bone?

 

Wealden Clay, Hastings Sub Group

 

Thanks for the help

[jpc]

Wealden is cretaceous?  It could be a crocodilian bone.  Hard to get a good view of the articular end. 

[Troodon]

Is the bone hollow or just the marrow eroded?