Mosasaur tooth and Edaphosaur toe bone. Are they real?

[Sickle_Claw]

Hello everyone. My first post in a while, and I just want to know the authenticity of these fossils that I bought online some time ago. I understand not the flashiest or most compelx, but I would just like to know. Please let me know if you would like better pictures.

 

Mosasaur:

 

Edaphosaurus

[Kane]

The tooth seems real enough, but let met tag @Troodon on the toe.

[Troodon]

Not well versed on Permian toe bones but they must be difficult to assign being  Similar in shape