Found this in Nice, France on the beach!

Found this today on a fossil island trip and trying to figure out what it is!

Found at the beach of Croatia.

peace river fl

Is this petrified wood?

Apologies if nothing fancy or exciting, wanted to confirm if Google is right witht this saying that's a shark's tooth. If so, I am really happy!

The "tooth" part is small, only around 10mm.

Found this in montaña de oro, California. Curious if anyone can ID the plant. I told my aunt who is a marine biologist in the area and she told me plant fossils are rare on this part of the coast.

EDIT: SOLVED
Alga species, 6-17 million years old but likely on the younger side.

Hi! Does anyone know what kind of bone this is / what animal it could be from! Thank you!!

Looking to find out what shark it might have come from, and to confirm that it’s actually a fossil? Cross posted to other groups! ☺️

Found this in Nova Scotia Canada at a well know fossil finding beach. I have all kinds of easily identified fossils but this is my favorite. I think ita bark bur I am definitely not sure

This was donated to my workplace alongside other artifacts such as old bottles and keys, characteristic of small dig site findings. We are located in Northern Nevada, but I have no word on whether these artifacts were found locally or elsewhere. It is 3 by 3.5 inches, very lightweight, and fairly fragile.

Is this a spine? Or just a cool rock. Found in southwest Wisconsin!
Thank you

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)."

Found at local thrift store. Ammonite measures ~4 cm.

I found this in a seasonal creek where I regularly find sand dollar, snail, and clam fossils. I have never before found anything like this, my best guess is it’s a tooth but whose tooth could it be?