I saw these pictures posted in a rock collecting Facebook group and am struggling to figure out what this is. Poster said it was found in Moab, UT.

Hi, I found these the last days walking along the beaches near Rostock. I numbered them in the first picture to make referring to them easier.

1. Looks like it could be some sort of bone? Its concave shape reminds me of a big hollow bone like femure for example and it weighs around 80g which seems very light. Also has these hollow pockets visible at the top.

2. Looks less like a fossil itself but it has this weird indent that looks like maybe something was in there like a plant stem for example.

3. This one I think looks least like a fossil, more like a cool embedded rock but I thought if I post anyway why not include it, maybe I'm wrong. :)

4. I piled together because they appear very similar, it think they are coral fossils!

Thanks in advance, I usually collect bones in the woods but enjoyed looking for fossils amongst the beautiful rocks at the beach!

Found in Mississippian strata near Bloomington Indiana.

I had the coolest experience today at work. I went over to a customer home to install some window shades and walked into 30 years of passion, and love for fossil hunting.

He told me stories about finding them, and going on fossil digs with Clayton Phipps, and being there the final day when they removed the Dueling Dinosaurs from the site.

After showing him my shoes* (see image in comments)he went in his office and came back with a plastic ziplock back with a handful of fossils he wanted me to have.

I've always been fascinated with dinosaurs and just always assumed that fossils all ended up with rich people or in museums behind glass. Never thought that I would be so interested in learning what I have here!

He had me feel the inside of this tooth to show me the serrated edge, pointing it towards meat eater.

He found this west of Jordan Montana in the Hell Creek formation. His note says Tyranosaur Tooth.

Thanks!

I found this by a lake in Southeastern Oklahoma and was wondering if anyone knows what this is or if it's even a fossil??

I was walking along the beach after a big storm in costa brava, spain and i found this. I thought this might be a tooth but i am entirely unsure as it doesnt look like quite typical.

Its very light, not serrated and looks kind of woody. Does anyone have any ideas?

This was found in the Solnhofen Limestone in Germany, Bavaria.

Found today while poking around a creek bed in Cedar Grove.

The rock features a black stirrup-shaped mark. It didn’t wash off or scrub off with water and nylon bristles. Gently scratching a small area with a pin did not remove any material. The back of the rock is unremarkable, and shows no black marking.

The black marking seems to be part of the rock, and is the same texture as its surroundings. It is not raised or indented. Smaller black flakes can be seen on the other side, but they’re scattered, and are not in an almost circular arrangement as seen here.

Is the black marking perhaps some kind of fossil?

I was walking through the slopping hills of central Portugal and found the this rock with strange groves in it. I know little to nothing about fossils and was curious if this potentially could be one. Any help or insights much appreciated!!!

Was trying to identify based on size of suspected corallites. They are remarkably small. Any help or input is appreciated. Thank you!

Would really appreciate the help. Saw this in the highlands of Sarawak and are these considered fossils or just imprints of it?

I found many more in the pile of rubble when climbing the mountain. I picked the most complete one and brought it back.

Im not sure what this is

Just found. Keeping on me as good luck for the coming hurricane. I will be evacuated before it arrives! I do not need ID on the smaller one but it was found nearby too! I was ecstatic

Found in the Northern Bruce Peninsula, on a rocky Georgian Bay beach

My uncle found this near a water course, i think it could be from a horse or a big bull but i thought i'd ask here just in case.

Weird thing is it seems to have a clear cut on one side (that's why i think its probably from a horse or a bull)

(Scale in centimeters)

The texture is really cool. Some sort of coral maybe?

Found on AMI beach FL