I found this impression of a sea urchin on a rock at Étretat, Normandy. I reasoned that that was where it belonged and did not carry it home.

Gemini said that it likely belongs to an extinct species of sea urchin.

"Fossil imprint of a cidarid sea urchin embedded within a weathered flint pebble.

A cidarid echinoid (pencil sea urchin), with features highly consistent with Stereocidaris sceptrifera (or a closely related genus like Tylocidaris) from the Late Cretaceous period (around 80–90 million years old)."

I had a bottle of knob creek and a football for scale. I found them eroding out of a bedrock ledge in a creek that runs through my buddy’s property. (SE Oklahoma)

Any idea if this is a fossil or just a rock with strange patterns?

Found on the beach outside of Charleston, C. What is it?

I was given this alleged T. Rex tooth by a friend, but I have my doubts. Is there any way to be sure?

I did lick it, and it has a similar texture to my own teeth, if that helps.

Thanks in advance 🦖

Korea, Pohang

Found this strange object in the mud in a cave in northern Thailand. Unsure if this is just a concretion of fallen stalactites or if it is some kind of fossil. Left it with a local caving guide after cleaning it up.

The fossil itself looked to be about 2-3cm

I found it in the Netherlands. Veluwezoom to be specific, in between the heath.

The fossil itself looked about 2-3cm

diameter 120mm

height 50mm

need your help!

My fiance found this underground at his coal mine job and we aren’t having much luck identifying it! It was found as part of the Herrin coal seam in southern Illinois, Randolph county to be exact

I am having trouble figuring out what this is, and rapidly realizing ChatGPT is pretty hit or miss on this stuff

Found two rocks in the decorative gravel. Wondering if fossils? Building owner unsure of where the rocks were from.

I’ve found many fossilized teeth and lots of coprolites here. I’m guessing this belongs to a prehistoric sea creature, but I have no idea. Any help would be appreciated.

Any ideas on this one. About 1cm in diameter. Preserved rapidly in volcanics. Notice unique shapes and spots on long abdomen or possibly wing. The closer I get the more detail is lost. Plants and animals of this region at the time (3.5ma) were similar to those from northeastern Queensland.

This was collected by my maternal grandfather around 1950 in Caldwell County, Kentucky. I’d like to know what this is a fossil of and why it’s so sphere like.

Not completely sure if it is a fossil, but figured you folks would know!

Found in the gravel of a Manor, Texas venue.

Doesn't show any flaking which leads me to believe it isn't a shell, weird pattern on smooth inside. Maybe a beak from a squid? Location sw florida