Did you buy it? Looks like a bought one. I have 3, it is a cool fossil.

Ammonite, most of the fossils you have here are gastrspods and ammonites

Can you please add more pictures?

This is not modern

Yes this is a fossil

Does seem to be a fish a clearer picture would be helpful

From the picture it looks like pyrite but the picture is blurry can you add more pictures? Pyrite is not a fossil

It’s probably a bone but it’s pretty eroded

Dino bone

Sorry it’s a polished rock. Did you buy it?

Crinoid imprint or sting ray dental plate

Wow did you find that?

It’s modern

Looks like burrfish beak

Horn coral

100 percent sure this is a megaladon tooth

Neverita josephinia

Sorry but that’s most likely a beautiful rock

turritella snail