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Yes

Way better

That’s a lot better, it looks like a row of shark teeth. @bill-heim could help you out with an ID

A scale and location would help. Also an image of the other side. I’m not sure what that is. It doesn’t appear to be shark teeth. The last one on the end which still has its outer surface looks more like bone. I rotated it and flipped it to provide a better look angle.

Could they be oyster shells?

They’re definitely a row of teeth, what just don’t know who’s teeth they are. They’re conical and pointy, so they belong to a predator of some kind. They’re in a line, so they probably don’t belong to a mammal. They don’t curve at all so they’re not crocodile, alligator, marine reptile, dinosaur, or land reptiles. The only match I found is a still unidentified species of bony fish that took over the oceans shortly after the end-cretaceous extinction. There is a Smithsonian article on it called “after the dinosaurs died, earth experienced the age of fish” Scientists are still trying to understand what exactly the fish is, so if you could contact one and give this to them for research, they’d appreciate it.

A scale and pictures from other angles would definitely be helpful. One possibility is that it is a partial fragment of the ventral edge of a bivalve or brachiopod shell. Again, a scale and another view looking down the dorsal-ventral axis showing the undulations of the shell could help confirm that.

Maybe @matthew-gramling could help identify

Thanks @a-trilobite ! This one actually is difficult to determine. I first thought it was a mineral formation, but it also looks like some form of marine life. @chloe-geddes might be able to determine if it’s a mineral formation or not.

Looks like shell growth to me! They could be the ridges of a shell: clam, oyster, brachiopod, and so on

@chloe-geddes I’m sticking with my fish teeth idea, I don’t know of any shells that look like that, and even if there are the odds of them forming in a line like that is VERY unlikely. If you check out the article I mentioned earlier, it has pictures of what I believe this fossil to be.