Is this a belemnite in a brick? I hope it is because if it is then it's the biggest one I've ever found.

I should add that it's 52mm end-to-end.

I posted on here a few times now I just started working for an estate sale company. All this was found in disarray packed away. Other stuff was well taken care of. I just need some help focusing on the important stuff to help the original owner who is in need. Obviously there is petrified wood and megalodon teeth. But I don't know where to focus my energy as we only have a few days to help him out and this is just a very very small fraction of the items in the home. There a 1,000 other things that need to be researched. Any help is greatly appreciated. And just a heads up this doesn't help me at all. I do this part time for chump change and I'm not even getting paid to take the time to do this. This will ultimately help the person who hired the company the most as I said he's in need.

I found what I believe to be petrified wood but the pattern along the top in the second picture is different enough to give me pause- would love some second opinions!

Found on Saltburn Beach UK

My son got a fossil mystery box at a rock and mineral show in AZ. I think one is a trilobite. Would like help with the mushroom and plant types.

I found this pretty small fragment of bone near a cluster of sand dollars and was wondering if there was any way to id?

Hello! I would love help identifying these guys... I have some ideas, but it feels like all of my Google searches only show much larger sized fossils even if they are similar in shape to these! The screw shaped ones have been especially hard to find a match for.
I noticed a couple of pentagon shapes amidst the circles... last slide is showing one of those.
Thanks for any ideas!!

It was with landscaping stones though so could have came from else where.

Will probably also post in r/RockID. Not sure what this is - the shape and size is very oyster shell but the material and colour are very rock.

Found at Wreck Beach.

Found in Brighton and Hove, UK.

Found this over the weekend in Charleston,SC. Found in a deposit with several mako teeth.

It is 100% fossilized bone as it has the structure. It seems very likely it’s a sperm whale tooth but just want confirmation.

non tagged box, just ammonites writeen on the side and all this matrixes inside. Europe based

both sides have “S” line in the middle. looks like a sandwich.

Hello all. I found these along the Bouie River in Hattiesburg,MS. Crinoids and maybe coral but not sure what else

I was fossil hunting in old mine waste dump. The rocks are carboniferous. This one was on a slope near a bicycle path and tramway. Oddly really smooth from both sides.

Hi, I found this when sifting in the sand for tiny pebbles at a beach in Delaware, USA. It’s about 1 1.7 cm long and 1 cm wide (at the widest point). Let me know if you need any other info to make an ID. Thanks!

Hello all! Posting here because someone on r/artifacts suggested. The title says it all! My great grandfather found this while plowing their family farm in the early 1960s. Any idea what it could be? It has been a family mystery lol. Feels and looks like stone. If not some kind of deliberately made tool, thinking maybe a geological something or weathered stone? Any opinions? Obviously I’d love for it to be some prehistoric tool but nothing like it exists so i don’t have a clue. Thanks!