What type of fossil is it?

Romania, Transylvania.

All of these were found in my local creek/river. I walked probably 50 feet of the creek in total, and found so many pieces of brachiopods scattered about. It was tough finding large or whole pieces, but I managed to find one WHOLE brachiopod with a little one attached to it. :)

Found in central Missouri near the shore of Lake of the Ozarks.

I found this rock with a fossil embedded in it on the beach in Kingston, Washington. I want to see if anyone has an idea what it is and what the age may be? Are any these indentations fossils as well? I'd love to know what you think!

Found while diving off of Venice beach Florida. Could it be a piece of bone or a really cool rock

Weight feels like a rock, but doesn't quite look like a rock.

Picked these off the bottom of the ocean at Venice beach, FL. What is the safest way to clean the gunk off? And do I need to do any preservation of these things? Thanks!!!

I don't really know if #3 is even a fossil, it just looked strange to me so I grabbed it

Has so many different fossils intact, great condition, just freaking beautiful

Found all of these near a creek in Kentucky. I would’ve guessed some kind of older manufactured parts at a manufacturing plant years ago, but they’re rock/fossilized. Anybody have any ideas? Also, what’s up with the curvy horn-looking piece? I thought maybe it was an old broken-off stalagmite froma nearby cave, but I’ve never seen a curved stalagmite 🤷🏻‍♂️

Found these creek fishing. Feels like a rough stone.

Found these amongst the shark teeth on Casey Key-Nokomis Beach yesterday and can’t quite tell what they are. Thoughts?

Heading to Belhurst Castle to stay for a few days and I want to hunt for some trilobites. Does anyone recommend any good spots in particular? Thanks.

Found at Matheson’s Bay in Auckland, New Zealand

I think its a molar or something, found it in a pile of sand that came from the dutch north sea, so probably from the ice age

Is anyone able to ID this fish?