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I found this sea urchin recently and figured I would share it with the forum. Not sure if it's a newly discovered species but it's a pretty nice piece. It looks like it got partly smashed somehow before petrification. It was found just outside the city limits of Uvalde, Tx near a slough that runs into the Leona River. So far I only have one picture to post but I will get a shot of the underside when I find the right lighting.

Hello again! Found this today onboard Camp Pendleton…thoughts on what it might be?

Just found wht is it

Hello. I have an opportunity to purchase this item but I am not sure if it is a Mammoth or Mastodon Tusk or a piece of petrified wood? It is 36" long and weighs 97 pounds. Any help would be greatly appreciated. Thank you.

Found within creek bed in Orange County, California. Have had this one for some time now. Always thought it looked sort of like petrified wood but is difficult to tell. The answer may be more obvious to someone else. Appreciate any input. Thanks.

Fossilized wood or just plain old rock. Found within the Santiago Creek bed of Orange County, California. Any thoughts.

Found this working in Utah. I think it looks like a fossilized bone (if that's even a thing) or something. Anyone know?

I found this peace of rock that looked, in my opinion like a piece of wood. It was found on beach known to have wood fossils. I want to make sure what it is and if it is just a rock.

Hello all, my dad acquired this item. He was told it was a petrified mushroom. Has anyone seen one of these or can confirm? thanks for your help

Hello all! I am new to this forum and felt I should repost my find here. A few days ago I saw this rock on the ground in our horse turn-out area. It certainly looks and feels like petrified wood, but I have never found any in Ohio before. I wondered if anyone else would know anything about petrified wood in northeast Ohio. Age of fossil? Type of tree? How common? Thanks for any input Steve

Dear Colleagues please help me figure it out. looks like a flint arrowhead. but no wonder, there are a large number of them. but it is interesting because there is inclusion inside .. personally, I clearly see the spine, head, gills, eye, and .. scales (. in the center of the fish, in the head and in the abdomen). but this is unrealistic, because animal organic matter is impossible in silicon rock. how to explain it? And is it even a fish? Thanks.

I found this petrified bone on my property in Southeast Michigan. Any ideas?

L.S., Hopefully the collective knowledge of TFF community will once again prove able to identify something that has stumped me. This time I need your help with these curious stem fragments! A good friend of mine purchased these at a mineral show on the US mainland. The specimens potentially originate from Kane County, Utah, but this provenance is far from bulletproof. It is quite likely, however, that they come from somewhere within the USA. The stems exhibit a hollow centre, with a ribbed internal surface (pith structure?). None of the specimens show nodes or other signs of axial segmentation, however. The cross-sections (both rough and weathered as well as polished) show seemingly regularly spaced vascular structures. The larger "pores", especially, are quite striking. Scale on images is in centimetres. If the Kane County provenance is correct, then a Mesozoic age seems likely. But, again, provenance is very much in question still! Has anyone on TFF seen this type of petrified stems before? Any information you could provide would be very much appreciated! Thanks, Tim

Hello all, I just found these two things on a beach of the Baltic Sea in Latvia. The bigger one could fool me because the black part is very much like wood, however the bottom part (the gum?) has an interesting texture. Also, I don’t know how to describe it but the bottom part feels almost sort of fresh, like it’s not very old…. While it’s hard and solid it still looks wet unlike other fossils I have held. Sounds silly but maybe it helps identifying it. Although the smaller one is very similar, I almost have no doubt that it’s a tooth or claw. From what I could find on the internet, my best guess would be sperm whale tooth? Please tell me what you think. Thanks!

Hello everyone, I found something that is a first of it's kind I've been told. This needs a close and careful look, so please examine all the details. And I can't wait to hear what everyone has to say on this one. I've been collecting rocks and fossils for 25+ years here in N.E. Minnesota. I found this on private property a few years back, and it sat in my collection until recently I looked at it again and seen it for what it really is finally. I am certain this is a petrified fingertip. And I know it's hard to believe, but take a close, and careful look at it please before any conclusion you have. I respectfully will listen to any and all the responses of everyone's given. It's the same size as my pointer fingertip from the tip to the first knuckle. The nail is clearly visible, fingerprint is also visible and opposite side of the nail as it should be. And the thing that confirms it for me the most. The picture of a cross section diagram I found on Google images of a fingertip matches my specimens nearly perfect. Compare the details from one to the other closely. Do you see it the same as I do? I researched and found this have been possible by nuclearpholic substitution. I have had people argue that it's impossible for this to happen to soft tissue. But I've also found examples of soft tissue in the right conditions were in fact fossilized by minerals. The cross section diagram match nearly exact if you carefully compare with my specimen. Thanks for your time and any response given everyone.

Greetings, is there anyone that could recommend a fossil expert located in Southern California that could come on site to certify a series of dinosaur fossils that have been uncovered. Specifically, petrified/opalized dinosaur fossils. Thanks in advance!

My friend found this in a creek bottom here in central Iowa. He thinks it might be a petrified pearl inside a half oyester. Any thoughts? Maybe the muscle?

I'm at a loss on what this could be, I found this around Clearmont, Wyoming on the Clear Creek, northern Wyoming.

I found these in Washington County Maryland (live in Central PA) while staying at an Airbnb. They were lying in and around a small creek. I've never seen anything like these before. I kept thinking they were peices of wood but was surprised to find them to be rocks when I picked them up. I also found this large peice of quartz? I have no idea so what do you all think?

Hi, I’m new to attempting to find pet wood. Was wondering if this could be an example. Found in b.c Canada

I had the opportunity to cruise around Wyoming, Colorado, and Utah on my own for 5 days The first day of my fossil hunting excursion was to be spent at the Petrified Blue Forest site in Western Wyoming. Having been there before, I knew fragments of wood abound, many carrying the blue agate on it. But I was determined to find a “large” log this trip. I had researched how to up my odds and stopped at a hardware store the night before and purchased a shovel as step one. So early that morning, I found myself looking out at the vastness of this “forest” thinking where to start. That is when this antelope startled me. After a short stare down both the antelope and I were on our merry way. Soon after stepping out of my vehicle to scout around, I began finding many small pieces of petrified wood with the characteristic blue agate that everyone is after. Here is a piece of wood next to a skull that I do not recognize. Any thoughts about what animal this was? After an hour, and not finding anything substantial, I jumped back into the car and followed an obscure path that led me to the top of a hill. From up here, one can appreciate the vastness of the region. Looking around told me that petrified wood existed even up here. So out came the shovel again. The ground is made up of a loosely broken sedimentary like rock that can be shoveled with some (much) difficulty. As I dug, my eyes were intently focused on the hole created looking for a hint of an algae fossil that has a very distinct look to it. Why look for algae???? Because within the algal mat is where the wood lies! Finally, after many digs, some significant algae appeared in my hole. Here is a picture of it as found and the debris surrounding it removed. A piece of the top layer of algae is removed, exposing the wood inside. Unfortunately, when I tried to wedge the log out of its hiding place it split in two, leaving this piece in tact and the other piece in a crumbled mess. Thank goodness I had purchased a small container of acetone at the store and I immediately added it to the Paraloid B 72 crystals I had brought with me from Minnesota. This stabilized the intact piece fairly well, though I could have used many more resin crystals than what I packed. The Blue Forest wood was deposited into a fresh water, algae filled, shallow lake that was full of silica. Soon after the fresh wood was deposited in the water, algae formed a thick crust around it. Here is a small branch showing the layering of algae. The wood with time shrunk, providing space for the silica rich water to do its thing!!!! In addition to the mineral deposits, this wood has exquisite preservation due to the algae blanket protecting it from the elements. Here is a piece that shows the boring holes by insects as fresh as if they were made today. Now some of my specimens brought home. Unfortunately, the specimens found on top of the Butte contained mostly yellow calcite crystals. Next time I will stay down below and hope for much bluer specimens. Here is a branch that was completely mineralized!!

I found this about a year ago in a farmers field in central/mid Michigan, US. It is rather light. Not much weight to it. Thanks for any help!