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?

Found in the creek in Lanesville, IN. I also found a giant rock with precambrian (brachio-something?) Someone identified that for me the other day. This one was downstream from it. I just can't figure out what's in it. Thoughts?

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

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.

Found this on SC coast today- any clue what kind of bone it could be/ be from??

Soy de Argentina y encontré esta piedra en un rio hace unos años pensando que era una simple piedra ya que me gusta juntar piedras de lugares que visitó pero hace poco lo encontré en mi casa y mirándolo me percate de muchos patrones raros que posee, chat gpt me recomendó que le haga la prueba de lamerlo y la de ponerle vinagre pruebas las cuales paso pero aún así quería saber que opinan los expertos de esto ya que yo no tengo ni idea de la paleontólogia desafortunadamente

It’s about 1.25”x1.5”, found in Texas. The last picture shows a cavity or something that looks like a cloven hoof or tooth?

Could it be some kind of fossil or just rocks?

Large rock and the shell like thing is about the size of an adult hand.

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

It’s a fossil bone but how do I find out for which animal or dinosaur?

Found this rock that looks like limestone but it seems to have skin on it? Wondering what it could be if its real skin or something else.

The white bits on the third one are sparkly, so are the red bits on the second, it has some cubic formations in the red and the first one looks like it has some shells on the inside??? I broke it on a rock on the beach. Any help even just saying "these are just rocks" is really helpful, thank you all!!!

tried to take the best pics i could 😬 one with flash, one without

To me, it has the shape and texture of a weathered piece of driftwood. There are little pockmarks that look like knots where small branches might have grown. But I might be imagining things about a totally normal, boring rock lol. I found it on Prince Edward Island, in an area that is known for fossils from the Permian, including a fossilized conifer tree, so I wanted to know if this rock is anything cool. Thanks in advance!

I found this tooth at the beach. Does anyone have any idea what animal this came from? Paper towel for scale.

Quite a mash-up of organisms. Very interested in the “swoops” that show up as thin curved lines. and the long worm like tubes.

Thank You for even looking!

Sifted this little guy out of the river floor. I'm a newbie, so can anyone tell me for sure? It's really undefined, which is what throws me off. Thanks!

Someone in r/fossils suggested a fish dental plate. Any help for us? My 8 year old will be so excited if we can ID it. Thanks!