New to the fossil collecting

[stoned_up]

Hi here's a few I found could anyone please help me identify these please 

 

#1

 

 

 

#1

 

 

 

 

#2

 

 

 

 

#3

 

 

#4

 

 

 

 

#5

 

 

#5

 

[Lone Hunter]

Echinoids, or sea urchins in third picture, the rest look like concretions but might be some fossils in first ones.

[Coco]

For any identification request we need the size, the origin, the age of the field where it was found, numbered and sharp images under several faces under natural lighting if possible.

 

From what I could see quickly, you have internal mussels of irregular sea urchins, but in this state quite difficult to identify (perhaps Echinocorys for the most marked).

 

Coco