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Found this very interesting bone fossil while hunting sea glass in Italy. I apologize for not having proper measuring tools, I just moved to Italy! The photos are taken on a standard US sized CD case. any ideas?? Thanks!

Hello all I have an unusual request for you all. I would like to see the results of prolonged weathering of in-situ fossils. So I was wondering if someone here has ever seen a fossil in-situ they didn't think was possible to extract, and a fossil of the same, or similar piece worn away sometime later. Ideally with an estimated time for the fossil to wear down. The turtles of the White River formation are the first thing that come to mind about this, but trackways should be possible too. The more impressive the fossils is, the better. Additionally, a picture of a specific natural spot (clif, badlands...) with a picture of the same spot over a period of time, to see how quick the environment can change the view of the landscape. I'm aware it's an unusual request, but this isn't something you can easily find on the internet. Hope I made some sense throughout this post. Thanks in advance.

Hi all, I found this bone on the beach today and wanted your guys thoughts. I really didn’t think it was fossilized, but I did the burn test anyway to be sure, and there is no burning hair smell. What are your guys thoughts? It was found in New Jersey, on a beach where I have found a couple shark teeth(4 or 5) including a Great White and a couple sand tigers. I think it’s a worn vertebrae, but I don’t know beyond that. When I get home I can get measurements, but I’d guess ~1-1.5” by ~1”. @Praefectus @Al Dente @MarcoSr @Darktooth @hokietech96 @Trevor @frankh8147

Hello everyone I've been reading the forum for about a year but this is my first post/question. I found this today that I think might be a mammoth milk/juvenile tooth. I found it on a Savannah River, GA dredge spoil island that has a mix of Miocene to modern fossils and bones. Most of what we find is heavily worn and tumbled by the river or dredging. I saw this and first thought it was just another rock and then something made me hold on to it. It's heavily worn but it looks pretty much like a tooth I bought off of online. The first two images are of it by itself. The last two images are posted next to a Mammoth milk tooth that I bought off of online a year or so ago from Florida (online tooth on the left in the last 2 images and today's tooth on the right for comparison). Your thoughts and opinions are greatly appreciated. Let me know if there are other sides/angles that would be of more help for ID. Thank you very much for looking.

Found this at GMR the weekend of the Aurora festival. Could this be an Angustidens or possibly older? It’s really worn so an exact ID might not be possible but it seems the cusps would have been really prominent had they not been so worn. This was sifted from the creek bed. Is Auriculatus a possibility in this case? It was very interesting to me.

Hi! So I found a shell one of my old friends gave me when I was a child and I remember he told me this was a very old shell, I'm curious if this is a modern shell thats just really worn or if it's a fossil. I don't know enough to be able to tell myself sadly. Thank you!

I found this worn bone looking nodule today near whitby. any ideas if its reptile or fish? Or just too worm to tell? cheers

From a creek in NC that has Cretaceous fossils. Could it be a very worn mosasaur tooth?

Hi all, Some time ago I made a post asking about what the fossil my friend had found was. Now he gave it to me (because he doesn't have a passion for it), which of course I was really glad with. Anyways, by surprise he gave me a second one too. It's also from a beach near Sevilla (Spain); I'm thinking that it's another worn echinoid. Am I right? Best regards, Max

I like Mosasaurs so I've been buying some cool stuff here and there for a while now. I have some loose teeth with and without roots and a few jaws. for a while now I've been noticing some interesting patterns. Or rather a single pattern that keeps showing up. I have 42 loose teeth and a number of these teeth have some wear patterns on them. Some just have some random wear here and there or tips broken or worn off of them. But a significant number of teeth have damage to the enamel on the front side of the tooth. Sometimes on the lateral side and sometimes on the labial side. Sometimes on both sides. Of these 42 teeth, 13 have significant damage to the enamel on the front. In about 8 or so the pattern is quite similar. This pattern seems almost exclusive to the large Prognathodon teeth with the only exception being a Mosasaurus beaugei? tooth that has some wear on the front. Though this tooth isn't nearly as damage on the front as the big Prognathodon teeth. This same wear pattern also shows up on a Prognathodon jaw that I'm still prepping. This jaw shows the same damage while the teeth are still mostly in the original position aside from some minor drifting. This pattern also does not show in the jaws of other mosasaur species I have. So I'm wondering is if this could possibly be as a result of some behaviour that Prognathodon might have had. Since quite a lot of the teeth show the same type of damage and it also shows in still rooted teeth. Have any of you ever seen this same pattern on mosasaur teeth? I'm wondering what your opinions are on this. My loose mosasaur teeth, one not shown. Big Prognathodon teeth at the top. Some possible Eremiasaurus teeth below them. The small recurved tooth crown on the left is Halisaurus arambourgi. Below it two small Platecarpus ptychodon teeth. Under those two badly crushed teeth. Lower left middle Mosasaurus teeth, some probably M. beaugei and some M. hoffmanni. Globidens teeth at the bottom. Prognathodon, Mosasaurus and Globidens rooted teeth on the left. Teeth with damage on the front. Only three that aren't Prognathodon at the bottom. Detail of a Prognathodon tooth. Prognathodon jaw with the same type of enamel damage on three teeth. The teeth towards the front are too damage during the fossilisation to tell if they have similar damage.

We found this well-worn bone in the Peace River several years ago. At the time, I chalked it up to being a very worn vertebra of some sort, but the flatness [edit: and thinness] of it gives me pause. It is about 3" x 2.5 " x 1", with a rather rectangular profile. As can be seen in the photos, the edges of the bone are very worn down and polished, showing cross-sectioning through the Haversian canals. On the top and bottom, the bone becomes extremely flat, which had led to my initial conclusion of it being some sort of spinal element. Thanks, in advance, for any assistance. ---Prem