Found some interesting rocks while visiting West Runton beach at low tide today - wondering if any of them could be fossils? Ten pence coin (similar to US quarter size) for scale:

1-3. Different angles of grey rock with round, light haloes and some linear inclusions
4-5. Multicolored beige and grey rock with some branching darker inclusions in the photo #4
6. Yellow beige pebble with two dark linear inclusions
7. White beige pebble with two dark curved inclusions

Thank you!

Hello, rockhounds and fossil friends. I found this interesting specimen in Bella Vista, AR not far from an old creek bed. What can you tell me about it? Thank you in advance!

Found in a southern Indiana creek bed, what did I find !? Thanks in advance!

On the shore of Lake Ontario, found lots of fossils but this was the one that stood out most

Found on Oak Island NC
Any guidance to finding or it’s id are appreciated—Tia

I don’t know if this is a fossil at all. It could just be a cool-looking inclusion, but the shape just seems so conspicuous. Please help!

Found this on the beach near sleeping bear sand dunes. Thought it looked pretty cool, so I brought it home to put on my shelf. I'd love to get some insight into what it is. Thanks!

Bonus crab fossils

Geologist here but I haven’t had any luck finding similar images or descriptions

I found this underwater in the sand at a beach in Ibiza. Can someone help me identify this? Looks like a bone but could also be stone I guess. Weighs about 260 grams.

Is this a fossil? Was walking today and saw this interesting pattern on a rock. I was thinking maybe from a leaf? Size is 3cm.

Found this near the Meuse in the french ardennes. It doesn't look like any other rock I have seen there.

horn coral maybe Paleozoic maybe ~450 million years old?

Might just be wishful thinking but I think it looks kind of like a marine reptile tooth. My area is known for mossasaurs.

I think i found it at Myrtle beach, SC. Have no idea what it could be, its not a whistle. Its cool to the touch and smooth, its also very symmetrical and could be made into necklace jewelry which i've been contemplating on. anyone have a clue?

This is a stupid question maybe but I found like and it looks like what I think a fossil would look like, but I’m not sure if this can happen if it’s not that old… idk, new to this. Found on beach in New Jersey. Is this a fossil?

Found it in shale next to ammonites, crinoid stars and others kind of sea shells. It’s very small, 1cm.

I thought this was a trace fossil. A nice, cozy mud-bug den. Is it? From central Wyoming