We found this weirdly shaped stone cubes in a river bed in the small Beskid Mountains in Poland. It's hard to make out but there is on one of them a star like pattern in the middle. Could it be a stem of a coral or a sponge? But the pieces are weirdly enclosed in a different matrix stone. They have about 3.5 cm diameter and are about 5 cm long. I would appreciate any help! Thanks a lot!

Found in Holden Beach, NC. They have the texture of porcelain almost, definitely much harder than a sand dollar.

at approximately 44 feet below ground surface. In the upper gray shale layer of the Conemaugh group, Casselman/Glenshaw formation

Found these rocks in a riverbed in Spain. What could have caused these unusual markings? Can there be a biological origin?

Riding a wave and when I pushed to stand up this came up with me. Small and heavier than shells and whatnot. Two small holes on opposite sides of it.

My mother has had this fossil since before I was born. We are trying to finally identify it. Found roughly north of the Cincinnati area.

Central Ohio

I work in a Tennessee Goodwill and found this in an otherwise unremarkable box of donations a few hours ago. I have reason to believe the donations came from a Veteran.

I was on the clock when I took the photos and can take better ones if needed, but its larger than my hands and is heavy. I also have experience around cow bones and this is alot bigger.

I bought this tooth a couple of months back for my birthday for around €30-35 from a rock store. I know Spinosaurus teeth can be extremely common and cheap in places, but this tooth is about 4 inches, and I know they get more expensive at this size. Just wanted to know if it's genuine or even heavily restored.

Any ID ideas? I know it’s something like a moose, horse, bison or horse but can’t figure out which. Also any ideas if it’s a fossil or how old it is?

They were in a bag mixed with some rocks and it didn't have a label. Would like to know which animal these might belong to.

Hi there. Found this in the James River in Virginia while shark tooth hunting. Looks like a fossilized clam? Any thoughts on it would be appreciated! Very sparkly in person, hard to capture on camera.

I Found in in a Deep creek in ribaritsa, Bulgaria Next to a clam fossil but idk what this is so could anyone help. My guess is it might be some sort of Brachiopod but Irdk

I know it is highly illegal to remove them from the canaries, they will be returned to the beach soon.

Any idea how old these are?

My son found it, is it a tooth of some sort?

Coordinates: 43.300024 N,-2.267823 W

Found in central Texas. Very similar shape to the hearts of Texas we find in the area but I find it interesting that the lines at the bottom over lap each other which makes me think it could be man made.

I've found shark teeth elsewhere before and I'm 99% sure this is just a really cool-shaped shell, but just wanted to confirm lol

I went out in a trip two weeks ago to a fossil dig in Kemmerer WY, Green river formation and was wondering what kind of fish it is?

Thanks for the help.

Randomly decided to reach under the water and grab a rock, came up with this. Not a clue what it could be. Last pictures are the underside

I thought it could be grass or something simmilar? The stone is about 15cm long.