Fish jaw?

[Harry_]

I found these fossils in Hampton Vale (it's quite a well known and fosiliferous site). The site is Oxford clay and jurassic. When doing wet sifting I found lots of these fossils all about 3 or 4mm and I think they are all fish jaws as they r way too small for rodents. This is the first of a few posts I will be doing for id on some fossils from there. Any help is greatly appreciated :). The pictures are of a few I found.

Thanks, Harry

[Harry_]

The other two I'd requests are now also in fossil id. They are about a possible rib and a possible vert so please take a look if you have any knowledge regarding those types of fossils. Thanks, Harry

[Harry_]

Any ideas on these fossils?

[RuMert]

Need better images, these are too small

[Fossildude19]

These look like pieces of shell, to me. 

 

 

 

 

 

 

[Harry_]

8 minutes ago, Fossildude19 said:

These look like pieces of shell, to me. 

 

 

 

 

 

 

Thanks for the opinion. I think it must be optimismosaurus