Fossil shark teeth?

[Marco90]

Tidying up my old shell collection, I found shark teeth that were given to me as a child. I have no indication of where they came from, but they look similar to fossil shark teeth I have come across on some sites. Could someone be able to help me identify them?

 

This reminds me of a Squalicorax teeth

 

This other could be Rhombodus binkhorsti?

 

And those are the other two

 

Thanks every one for the help!

[ThePhysicist]

These are all Moroccan teeth.

1. Squalicorax pristodontus

2. Not well-versed with rays, but your ID looks right:

 

3. Some kind of sand tiger. 

4. Cretalamna biauriculata / marrocana

 

This is a useful site for Moroccan teeth: http://users.telenet.be/sharkteethcollection/sharkteeth list totaal/totaal sharteeth list.htm