Mysterious big brook fossils?

[Walmart Bag]

Hey,

 

A couple years ago I did go to big brook and I did find some items that I cannot identify there. Im an amateur fossil hunter haha, but I am intrigued to see if they could actually be a fossil or a suggestive rock. Ive attached the photos. I honestly have no idea if they are even anything, but I did have a suspicion that the black fossil looks like an edmontosaurus tooth. No idea.

 

[FranzBernhard]

All these look somewhat rocky, maybe these are some kind of concretions? Concretions are notorious for pretending to be some sort of fossil.

Franz Bernhard

[Walmart Bag]

Ohh yeah that makes sense. I found many belemnites and a few shark teeth there. I think there is one fossil that im 100% sure is a fragment of some sort of tooth but not sure from what species. I might post it soon too.